Worms in Dogs: Symptoms, Risk and What It Costs

Four different worms with four different stories, grouped together only because they all live in a dog's gut. This is an emergency and needs a vet now if any of these are true: A puppy with white or very pale gums, weakness, or collapse; A puppy that is cold, floppy and will not nurse or eat.

Is this an emergency?

Worst first. Find the highest rung that matches what you can actually see, and act on that one — not on the one you hope applies.

1. Emergency — go nowGo to an emergency vet or the nearest open clinic now. Do not wait for morning.
   • A puppy with white or very pale gums, weakness, or collapse
   • A puppy that is cold, floppy and will not nurse or eat
   • Black tarry stool, or large volumes of blood in the stool
   • Repeated vomiting with a swollen, painful belly in a young puppy
   • Severe diarrhoea with dehydration in a dog of any age

   Pale gums in a puppy is the emergency on this page. Cornell: Ancylostoma caninum is the species most likely to cause acutely significant anaemia and even death in young puppies infected during nursing, and because hookworms start sucking blood before they produce any eggs, a puppy can be dangerously anaemic while its faecal test is still negative. Cornell's treatment list for severely affected animals includes fluid therapy and, in some cases, blood transfusion. Cornell also notes a rare but deadly complication of heavy roundworm burdens in puppies: an intestinal blockage.

2. Same dayGet an appointment today. If your own practice is full, an urgent-care clinic counts.
   • Visible worms in the stool or in vomit
   • Diarrhoea or vomiting in a puppy, or in a newly adopted dog of unknown history
   • A pot-bellied puppy with a dull coat that is not growing as it should
   • Coughing in a puppy with a known or suspected worm burden
   • Melena — digested blood making the stool black and tarry

   Cornell lists coughing among hookworm and roundworm signs because larvae migrate through the lungs before returning to the gut, and it is a sign owners rarely connect to worms. A pot belly, poor coat, weight loss and stunted growth in a puppy is Cornell's roundworm picture, and the risk there is nutritional depletion at the exact age it does most damage. Anaemia in a puppy can also worsen for a few days after deworming — Cornell explains why: when the hookworm detaches it leaves an ulcerative lesion that can keep bleeding.

3. Routine — book an appointmentBook in the next few days and keep an eye out for anything on a rung above.
   • Rice-grain-like segments around the tail or in the bedding
   • Persistent soft stool or intermittent diarrhoea in an adult dog that is otherwise well
   • Scooting or excessive licking at the rear
   • A dog that has come off parasite prevention, or has never been on it
   • A dog that hunts, scavenges or eats faeces

   Book an appointment with a stool sample. This is also the rung for the routine faecal screen, and it matters because shedding is intermittent — a negative result on one sample is weaker evidence than most people assume. Merck's standing advice for whipworm specifically is that because egg shedding is intermittent, therapeutic deworming should be given even when the faecal examination is negative.

4. Monitor at homeNo visit needed yet. Watch for anything on a rung above and re-read this page if it appears.
   • A dog on a year-round monthly preventive with no signs
   • A puppy part-way through its scheduled deworming course
   • A household with young children and a dog that goes to parks and playgrounds

   The monitoring here is a schedule rather than a symptom watch. Cornell: puppies should be treated starting at two weeks of age, then every two weeks until around eight weeks, even if faecal tests are negative, and then started on a monthly preventive; pregnant dogs should be treated late in pregnancy, around day 40, and then on the same interval as their puppies while nursing. Cornell also notes many monthly heartworm preventives containing ivermectin/pyrantel or milbemycin oxime also kill the larval stages of hookworms and roundworms, so the heartworm preventive is doing double duty — but it does not touch the arrested larvae sitting dormant in tissue.

Four different parasites are filed under one word here, and they have almost nothing in common except an address. The signs an owner can see — diarrhoea, a pot belly, a poor coat, rice-grain segments around the tail — overlap heavily, and none of them names the worm.

What the best US numbers actually say

The prevalence figure in the section below is 20.80% of 4,692 canine faecal flotation results submitted to ten academic veterinary parasitology laboratories across nine US states during 2018. That denominator is doing a lot of work.

Every dog counted was a dog whose veterinarian sent a sample to a diagnostic laboratory, which skews towards dogs with gut signs and away from healthy dogs on preventives. So 20.80% is an upper bound on an ordinary well-cared-for dog's risk, not an estimate of it.

The headline is also not what it appears. Giardia at 8.33% and Cystoisospora at 4.35% are protozoa, not worms at all. The actual worm figures are lower and more useful: hookworms 5.63%, roundworm 2.49%, whipworm 2.43%.

Why a negative faecal test proves less than you think

Because shedding is intermittent and, for one parasite, the test is structurally incapable of the job. Merck's standing advice on whipworm is that because egg shedding is intermittent, therapeutic deworming should be given even when the faecal examination is negative — which means the 2.43% above is an undercount by construction.

Tapeworm has the same problem for a different reason. Segments rupture rather than releasing eggs evenly, so Cornell notes faecal testing often misses an active infection and direct observation of a segment is the primary diagnosis. If you found one, bring it in a sealed bag.

Where a stronger answer is needed, Cornell describes antigen testing for roundworms — helpful when the dog is passing few eggs — and faecal PCR for hookworms. Those detect the parasite rather than its eggs.

The puppy emergency almost nobody names

Pale gums. Cornell states that Ancylostoma caninum is the species most likely to cause acutely significant anaemia and even death in young puppies infected during nursing, and gives the mechanism that makes it invisible: hookworms start sucking blood before they produce any eggs.

So a puppy can be dangerously anaemic while its faecal test is still negative. Cornell's treatment list for the severely affected includes fluid therapy and, in some cases, a blood transfusion — a different order of bill from a tube of dewormer.

There is a counterintuitive sequel worth knowing before it frightens you: Cornell notes anaemia can get worse for a few days after deworming, because the detaching hookworm leaves an ulcerative lesion that keeps bleeding.

Can humans catch dog worms?

Yes, and the version that matters is not the one people picture. Cornell notes roundworm larvae ingested by a person do not mature into adult worms, but can migrate through organs and sometimes cause serious damage to the nerves or the eyes.

Hookworm exposure produces a skin condition called cutaneous larva migrans, from larvae penetrating skin — the same route by which dogs pick them up, and the reason Cornell describes red itchy pimples between an infected dog's toes.

Children are the group at risk, because of where they play and how often they get their hands near their mouths. Cornell's prevention list is accordingly practical: prompt removal and disposal of faeces, hand hygiene, and keeping children from playing where animals defecate. Sandpits get covered.

Why the monthly preventive does not end the story

It covers more than most owners realise and less than they assume. Cornell notes that many monthly heartworm preventives containing ivermectin/pyrantel or milbemycin oxime also kill the larval stages of hookworms and roundworms, so the heartworm tablet is doing double duty.

The gap is arrested larvae. Cornell states these medications do not kill larvae lying dormant in body tissue — and those are exactly the ones that pregnancy and lactation reactivate, accumulating in the mammary glands. That is why a well-treated adult bitch can still pass hookworms to her whole litter, and why all nursing puppies are assumed to be at risk regardless of the dam's history.

Tapeworm is outside the preventive entirely. Cornell: dogs only become infected by ingesting a flea or a rodent carrying the larvae, so a tapeworm diagnosis is also a flea diagnosis. Deworming clears the current infection; only flea control on every animal in the house stops the next one.

The schedule matters more than the drug

Cornell's puppy schedule is deworming from two weeks of age, every two weeks until around eight weeks, even if faecal tests are negative, then a monthly preventive. Pregnant dogs are treated late in pregnancy, around day 40, and then at the same interval as their puppies while nursing.

For an adult dog with a diagnosis, the repeat is the step most often skipped. Cornell's instruction is that treatment is repeated every two to three weeks, to kill the worms that were still larvae at the first dose — which is the commonest reason a dewormed dog is wormy again a month later.

Four worms, four different stories

Roundworms pass from the dam before birth and through the milk, and produce the classic picture Cornell describes: a pot-bellied puppy with a dull coat that is not growing as it should. The risk is nutritional depletion at the age it does most damage.

Hookworms are the blood feeders, and they have a second route the others do not — Cornell notes larvae can penetrate skin and migrate through the bloodstream, with red itchy pimples appearing between the toes where they went in.

Whipworms are the ones the test misses, for the reason above. And tapeworms are not really a worm problem at all in practical terms: Cornell states dogs only become infected by ingesting a flea or a rodent carrying the larvae, and the commonest species is spread by swallowing fleas during grooming.

Coughing sits across two of them and almost nobody connects it. Cornell lists it among hookworm and roundworm signs, because the larvae migrate through the lungs before returning to the gut.

Picking up the garden is a treatment step

Cornell's timings make it worth the effort. Hookworm eggs hatch and mature through three larval stages over two to nine days before becoming infective, and roundworm eggs need two to four weeks — so prompt faeces removal genuinely interrupts the cycle rather than merely tidying.

Left in place, both are hardy. Roundworm eggs persist in soil far longer than the maturation window, which is why a garden with a history keeps reinfecting a treated dog.

The rest of the environmental plan is the same list: prevent predation and scavenging, because Cornell names ingestion of prey such as rodents as a route for both hookworms and roundworms, and treat every animal in the house for fleas if a tapeworm has been found. Deworming clears what is there; only the flea control and the poop scoop change what happens next month.

What it costs, and where it stops being cheap

Almost all of this is inexpensive, which is the point. The consultation and faecal examination run $56–$130 nationally with $66 typical, and the anthelmintics themselves are a small fraction of a single visit.

The prevention is bundled: the puppy vaccination series at $40–$475 is the visit schedule the deworming course rides along with, and the monthly heartworm preventive — a different parasite in a different organ, priced separately at $300–$1,800 for actual treatment — is the tablet doing the double duty above.

Two branches leave that price band. The first is the anaemic nursing puppy, where fluids and a transfusion are the bill. The second is rarer and larger: Cornell describes a heavy roundworm burden in a puppy forming an intestinal blockage, and obstruction surgery is $1,200–$7,976 with $4,383 typical. Vomiting with a distended abdomen in a wormy puppy is an imaging case rather than a deworming case, and the difference between the two ends of that range is measured in a few days.

Why intestinal worms in dogs happens

Transmission from the mother, before and after birth

The reason puppies are assumed to be infected. Cornell: hookworm larvae can migrate through the body and become dormant in tissue, are not killed by monthly preventives while dormant, and are reactivated by pregnancy and lactation, accumulating in the mammary glands — which is why all nursing puppies are assumed to be at risk. Roundworms pass both before birth and through the milk.

Ingesting eggs or larvae from contaminated ground

Cornell: dogs become infected after ingesting mature larvae in a faeces-contaminated environment. Hookworm eggs hatch and mature through three larval stages over two to nine days before becoming infective, so prompt faeces removal genuinely interrupts the cycle. Roundworm eggs need two to four weeks to become infective, and are hardy in soil for far longer.

Larvae penetrating the skin

Specific to hookworms and the reason they are not only a gut problem. Cornell: dogs can become infected by hookworm larvae that penetrate the skin and migrate through the bloodstream, and skin signs can occur where the larvae go in — Cornell describes red, itchy pimples between the toes.

Eating prey or scavenging

Cornell lists ingestion of prey such as rodents carrying larvae in their tissues as a route for both hookworms and roundworms. This is the route that a monthly preventive covers but a fenced garden does not.

Fleas and rodents, for tapeworm

Cornell: unlike the other worms here, dogs only become infected with tapeworms by ingesting a flea or a rodent carrying the larvae. The commonest species, Dipylidium caninum, is spread by swallowing fleas, usually while grooming — which is why a tapeworm diagnosis is also a flea diagnosis and why deworming without treating the fleas guarantees it comes back. Taenia species come from eating rodents.

How a vet diagnoses intestinal worms in dogs

Not every test below is run on every animal. Which ones are depends on what the examination finds, and each one is priced in the cost section further down.

Faecal flotation

The standard test: eggs are floated out of a stool sample and identified under a microscope. Its weakness is the reason the rest of this list exists — shedding is intermittent, tapeworm segments rupture rather than releasing eggs evenly, and hookworm-infected nursing puppies can be severely anaemic before they shed any eggs at all. What it costs

Faecal antigen testing or PCR

Cornell: an antigen test can be helpful for detecting roundworms, especially when the dog is passing few eggs, and hookworms can be diagnosed by faecal PCR. These detect the parasite rather than its eggs, which closes the gap left by intermittent shedding.

Complete blood count

Cornell: in cases of severe illness, blood work is needed to evaluate for anaemia. In a pale puppy this is the test that decides whether a transfusion is needed, and it is repeated after treatment because anaemia can worsen for a few days once the worms detach.

Visual identification of segments or adult worms

Cornell: owners may see adult roundworms in the stool or in vomit, and tapeworm segments about the size of a grain of rice near the anus or in bedding — white and moving when fresh, dried and yellow later. Cornell notes faecal testing often misses an active tapeworm infection because egg shedding is only periodic, so direct observation of a segment is the primary diagnosis. Bringing what you found to the appointment, in a sealed bag, shortens things considerably.

Abdominal imaging where an obstruction is suspected

For the rare but serious case Cornell describes: a heavy roundworm burden in a puppy forming an intestinal blockage. Vomiting with a distended abdomen in a wormy puppy is an imaging case, not a deworming case. What it costs

How intestinal worms in dogs is treated

Anthelmintic deworming, repeated

Cornell: pyrantel pamoate or fenbendazole kill adult worms, and treatment is repeated every two to three weeks to kill worms that were larvae at the first dose. That repeat is the step most often skipped and the commonest reason a dewormed dog is still wormy a month later.

Monthly broad-spectrum preventive

Cornell: many monthly heartworm preventives, such as those containing ivermectin/pyrantel or milbemycin oxime, kill larval stages of hookworms and roundworms and help prevent reinfection. Cornell's caveat is important — these medications do not kill arrested larvae dormant in the body's tissues, which is why a well-treated adult bitch can still pass hookworms to her litter. What monthly broad-spectrum preventive costs

Scheduled deworming of puppies and pregnant dogs

Cornell: puppies treated starting at two weeks of age, every two weeks until around eight weeks, even if faecal tests are negative, then monthly preventive. Pregnant dogs treated late in pregnancy, around day 40, then at the same interval as their puppies while nursing. This is the single most effective intervention on the page and it is usually bundled into the puppy visit schedule. What scheduled deworming of puppies and pregnant dogs costs

Supportive care for severe cases

Cornell: severely affected animals may require gastrointestinal protectants such as sucralfate, fluid therapy and, in some cases, blood transfusions. This is what the emergency rung costs, and it is a different order of bill from a tube of dewormer.

Environmental and household management

Cornell: prompt removal and disposal of faeces, preventing predation and scavenging, good hand hygiene, and keeping children from playing where pets or other animals defecate. Hookworm and roundworm eggs and larvae are hardy in the environment, so picking up the garden is a treatment step, not housekeeping.

Praziquantel and flea control, for tapeworm

Cornell: praziquantel is the deworming medication for tapeworms, commonly given once as a tablet and also available as an injection or a topical. Alongside it, flea control means treating every pet in the household with a routine flea preventive and treating the home and yard as well. Deworming clears the current tapeworm; only the flea control stops the next one.

Outlook and prevention

Cornell: most dogs recover from roundworm infection after proper treatment, and most dogs with hookworms respond well to treatment, though reinfection is common without environmental management. The exceptions are all in puppies. Young puppies with severe roundworm burdens are at highest risk from nutritional depletion that stunts growth, and a heavy burden can rarely form a fatal intestinal blockage. Puppies severely ill from hookworms are more likely to have serious complications and, in rare cases, to die. Cornell also flags a counterintuitive point about recovery: anaemia can get worse for a few days after deworming, because the detaching hookworm leaves an ulcer that keeps bleeding.

Year-round monthly broad-spectrum parasite prevention, deworming to the schedule rather than to the symptom, and picking up faeces promptly. Cornell's puppy schedule is deworming from two weeks of age every two weeks to about eight weeks regardless of faecal results, then monthly; pregnant dogs are treated from around day 40 of pregnancy and at the same interval as the litter while nursing. Stop the dog eating rodents and scavenging. Control fleas, because that is the only thing that prevents tapeworm. And take the zoonotic side seriously: Cornell notes roundworm larvae ingested by a person do not mature into adults but can migrate through organs, sometimes causing serious damage to the nerves or eyes, and that hookworm exposure in people causes a skin condition called cutaneous larva migrans. Children are the group at risk, so hand washing and keeping sandpits covered are part of the prevention plan for the dog's worms.

How common it is: 20.80% of canine faecal samples positive for at least one parasite; Ancylostomatidae (hookworms) 5.63%, Toxocara canis (roundworm) 2.49%, Trichuris vulpis (whipworm) 2.43%, Giardia 8.33%, Cystoisospora 4.35% — 4,692 canine faecal flotation results submitted to ten academic veterinary parasitology diagnostic laboratories in nine US states during 2018; 69.52% from client-owned dogs, 2.60% shelter dogs. Source.

What treating intestinal worms in dogs costs

Costs for intestinal worms in dogs run from $40 for puppy vaccination series to $7,976 for dog bowel obstruction surgery. Which of the 4 procedures below your animal needs is what decides where you land.

Each block below is one procedure we price in full: the national range, the region-by-region table behind it, and how every row was sourced. Rows marked published come from a real price for that geography; rows marked indexed are the national range scaled by a cited regional cost index, and we label them rather than blending the two.

What the invoice for dog bowel obstruction surgery looks like

Dog Bowel Obstruction Surgery is the largest single bill on this page, so this is the one worth reading line by line. Clinics quote a bundled number and itemize afterwards; this is the decomposition.

Does pet insurance cover intestinal worms in dogs?

Dog Bowel Obstruction Surgery is normally covered by a standard accident-and-illness policy. A swallowed foreign body is the textbook accident claim and is covered by any accident-and-illness policy, and by most accident-only policies too, once the waiting period has passed. Accident waiting periods are the shortest in the market - often 2 to 15 days - which matters because this is a condition that arrives with no warning at all. CareCredit's own guidance is the practical warning: most insurers require you to pay the hospital first and are reimbursed afterwards, so a $4,000 bill still has to clear your card at 2am. The one real exclusion risk is a dog with a documented history of repeat ingestion, which some carriers treat as a pre-existing behavioural pattern.

What you would get back: 70-90% of the covered bill after the annual deductible, on a policy in force before the object was swallowed.

The catch, and it is the one that matters here: every US carrier excludes pre-existing conditions. If your animal has already been seen for intestinal worms in dogs — or for signs a vet later links to it — a policy bought today will not pay for this episode. Cover is something you buy before the diagnosis, which is why the $40–$7,976 above is worth knowing while your pet is still well.

Waiting periods, and what each carrier counts as pre-existing, differ enough that the only useful answer is a side-by-side: our pet insurance comparison for dog bowel obstruction surgery shows which policies pay for it, how long the wait is, and how each one words the pre-existing exclusion.

Common questions

Related conditions and costs

What treating it costs, procedure by procedure

• routine vet checkup (wellness exam) cost $56–$130 — The annual physical examination a healthy dog or cat gets - vitals, ears, eyes, mouth, coat and skin - priced as the exam fee alone, before any test or vaccine is added to the bill.
• puppy vaccination series cost $40–$475 — The full primary vaccination course a puppy needs between 6 and 16 weeks of age - at least three doses of the DHPP combination plus rabies - priced end to end rather than shot by shot.
• dog heartworm treatment cost $300–$1,800 — Killing adult heartworms in a dog with a course of melarsomine injections, plus the two months of drugs, imaging and exercise restriction that go around them.
• dog bowel obstruction surgery cost $1,200–$7,976 — Emergency removal of a swallowed object blocking a dog's stomach or intestine, either by endoscopy or by opening the abdomen, with dead bowel resected if the blockage has been in place too long.

Related conditions

• dog coughing — A cough is a sign, not a diagnosis, and the same dry hack can come from an infection that clears itself in two weeks or from a failing heart valve.
• dog diarrhea — Loose or watery stool, with or without blood, and the sixth most frequently recorded disorder in dogs in primary practice.
• dog vomiting and diarrhea — Sudden vomiting, usually with diarrhoea, from an inflamed stomach and intestine.
• dog vomiting blood — Blood in a dog's vomit - fresh red, dark clots, or the brown grit that looks like coffee grounds because the stomach has already digested it.
• parvo in dogs — A virus that destroys the lining of a puppy's intestine and the bone marrow that makes its white blood cells, producing vomiting and bloody diarrhoea that can kill in days.
• symptoms of blocked anal glands in dogs — Two small scent sacs sit either side of the anus and normally empty when a dog passes a firm stool.
• dog dementia treatment — An age-related degenerative brain disease that Cornell describes as causing deterioration similar to Alzheimer's disease in people, with beta-amyloid accumulating and neurons dying.
• dog colitis medication — Inflammation of the colon, which shows up as small, frequent, urgent stools carrying mucus and often fresh red blood, with straining.
• dehydrated dog treatment — Dehydration is not a disease, it is the measurable consequence of one, and the numbers behind it are published rather than guessed.
• dog diabetic symptoms — The pancreas stops making enough insulin, so glucose stays in the blood instead of feeding the cells, spills into the urine and drags water with it.
• dog ear infection treatment — Inflammation of the ear canal, almost always with a yeast or bacterial overgrowth on top of it.
• dog pregnancy symptoms — The signs owners read as pregnancy - weight gain, a swollen belly, mammary enlargement, milk, nesting behaviour - are produced just as reliably by a false pregnancy, and there is no home test that tells them apart.
• dog skin allergies — A lifelong immune reaction to ordinary environmental substances - pollens, moulds, dust mites, dander - that shows up as itching rather than sneezing.
• dog UTI symptoms — A bacterial infection of the bladder, usually Escherichia coli travelling up the urethra from the perineum.
• dog eye allergies — A red, weeping, itchy eye is what owners call an eye allergy, and environmental irritants and allergens genuinely are, in Merck's words, common causes of conjunctivitis in all species.
• hip dysplasia in dogs — An inherited malformation in which the hip joint is too loose, so the ball grinds in the socket and arthritis follows.
• ivdd in dogs — A disc between the vertebrae ruptures or bulges and presses on the spinal cord, causing pain, wobbliness or paralysis.
• kennel cough in dogs — A contagious inflammation of the windpipe and airways caused by a mix of viruses and bacteria, not by one organism.
• dog limping — Limping means something painful is interfering with the normal use of a limb, and Cornell's framing is that it deserves veterinary attention rather than a wait-and-see.
• ringworm in dogs — Ringworm is a fungal infection of the hair and the surface of the skin, and the name is the first thing that misleads.
• dog seizures — A burst of abnormal electrical activity in the brain, which in its classic form drops the dog on its side with stiff, paddling limbs, frothing, loss of consciousness and often loss of bladder and bowel control.
• staph infection in puppies — Crusty pustules on a puppy's hairless belly and groin, caused by the dog's own resident bacterium overgrowing.
• dog wound treatment — Cleaning and closing a wound is mostly a timing decision, and the two things owners get wrong are both correctable in the first hour.
• yeast infection in dogs — Malassezia pachydermatis is a yeast that lives on normal dog skin and in normal ears.
• dog skin yeast infection — Malassezia yeast lives on normal dog skin and only causes disease when something changes the skin it lives on.
• dog vomiting yellow — Yellow vomit is bile that has refluxed from the duodenum back into an empty stomach, and it is a description rather than a diagnosis.
• kidney disease in cat symptoms — The kidneys lose function slowly and permanently, and the cruel arithmetic is that they hide it until most of them are gone.
• cat teeth disease — Three overlapping diseases, not one: gingivitis, which is reversible; periodontitis, which is not; and tooth resorption, in which the tooth dissolves from the inside out and which Cornell calls the most common cause of tooth loss in cats.
• signs and symptoms of cat diabetes — A disease in which the cat's cells stop responding properly to insulin, so glucose stays in the blood instead of feeding the body.
• why is my cat meowing so much — Excessive meowing is a sign, not a disease, and it is the sign this dataset can be most useful about — because its differentials range from a cat that has learned meowing produces breakfast to a male cat that cannot pass urine and will die within about two days without treatment.
• cat coughing — A cough in a cat is a lower-airway problem until proved otherwise, and the commonest cause is asthma - an allergic narrowing of the small airways that Cornell puts at 1 to 5% of cats.
• urinary blockage cat — A group of conditions causing painful, frequent, bloody or unproductive urination in cats.
• worm cat symptoms — Worms in cats are usually silent, and the signs owners are told to look for - a dull coat, a potbelly, vomiting, diarrhoea - are the same signs as a dozen other things.

Sources

Clinical sources

What this condition is, how it is diagnosed and when it becomes an emergency, from veterinary colleges, professional bodies and peer-reviewed primary-care studies.

1. Roundworms — Cornell Richard P. Riney Canine Health Center, Cornell University College of Veterinary Medicine, 2026.
2. Hookworms in dogs — Cornell Richard P. Riney Canine Health Center, Cornell University College of Veterinary Medicine, 2026.
3. Tapeworms — Cornell Richard P. Riney Canine Health Center, Cornell University College of Veterinary Medicine, 2026.
4. Retrospective study of canine endoparasites diagnosed by fecal flotation methods analyzed across veterinary parasitology diagnostic laboratories, United States, 2018 — Sobotyk C, Upton KE, Lejeune M, et al. Parasites and Vectors 14:439, 2021.
5. Ascarid — CAPC Guidelines — Companion Animal Parasite Council, 2026.

Price sources

Where every figure in the cost section comes from. These are US fee schedules, published price surveys and carrier claims data — reported by us, and outside the scope of the clinical review noted at the top of the page.

1. Veterinary Exam and Procedure Costs, including 50-state routine visit tables — CareCredit (Synchrony), 2025-2026 Synchrony Average Procedural Cost Study conducted by ASQ360 Market Research, 2026.
2. Lack of online price transparency of small animal veterinary clinics in the United States — Adams, Gilley, Morris and Wisnieski, Frontiers in Veterinary Science, DOI 10.3389/fvets.2026.1788878, 2026.
3. About Our Pricing — Cane Bay Veterinary Clinic, Summerville, South Carolina, 2026.
4. Pricing and Transparency — Dallas Veterinary Clinic, Dallas, Texas, 2025.
5. Veterinary Clinic Price List — Tequesta Veterinary Clinic, Florida, 2026.
6. Philadelphia Pricing — Love City Vet, Philadelphia, Pennsylvania, 2026.
7. Pricing — Kenmore Veterinary Hospital, Kenmore, Washington, 2026.
8. Service Pricing — Covina Animal Hospital, Covina, California, 2026.
9. Price List — Midvalley Animal Clinic, Taylorsville, Utah, 2026.
10. Prices — Rocket City Mobile Vet, Huntsville, Alabama, 2026.
11. Pricing — Modern Animal, 2026.
12. 2022 AAHA Canine Vaccination Guidelines (JAAHA 2022;58:1-19) — American Animal Hospital Association, PDF hosted by Merck Animal Health, 2022.
13. Vaccination Packages and Prices, Chicago, Illinois — Vetco Vaccination Clinics (Petco), 2026.
14. Vaccination Packages and Prices, Garey, California — Vetco Vaccination Clinics (Petco), 2026.
15. PetVet Vaccination Clinic Pricing, York, Pennsylvania — PetVet by VIP Petcare at Tractor Supply, 2026.
16. PetVet Vaccination Clinic Pricing, East Ellijay, Georgia — PetVet by VIP Petcare at Tractor Supply, 2026.
17. PetVet Vaccination Clinic Pricing, Fort Wayne, Indiana — PetVet by VIP Petcare at Tractor Supply, 2026.
18. PetVet Vaccination Clinic Pricing, Oak Ridge, Tennessee — PetVet by VIP Petcare at Tractor Supply, 2026.
19. Low-Cost Resources — Loudoun County, Virginia, 2026.
20. Vaccine and Microchip Clinics — Fairfax County, Virginia Animal Services, 2026.
21. Vaccine Clinics — Haven Humane Society, Redding, California, 2026.
22. How Much Do Dog and Puppy Vaccinations Cost? — CareCredit (Synchrony), 2026.
23. Frequently Asked Questions on Heartworm Treatment in Shelters — American Heartworm Society, 2026.
24. What Is Heartworm Disease in Dogs? — CareCredit (Synchrony), 2026.
25. How Does Heartworm Treatment Work, and What Does It Cost? — CareCredit (Synchrony), 2025.
26. Heartworm Treatment — SPCA of Texas, Dallas, 2026.
27. Community Healthcare and Enrichment Center Veterinary Services — Columbus Humane, Columbus, Ohio, 2026.
28. Canine Tests and Fees — Veterinary Medical Diagnostic Laboratory, University of Missouri, 2026.
29. Cat and Dog Intestinal Blockage Surgery Cost — CareCredit (Synchrony), 2025.
30. How Much Does an Emergency Vet Visit Cost? — CareCredit (Synchrony), 2026.
31. Gastrointestinal Foreign Bodies (Bowel Obstruction) — American College of Veterinary Surgeons, 2026.
32. Pricing — Shore Pet Surgery, Grasonville, Maryland, 2026.
33. Surgery Services and Pricing — Access Veterinary Care, Minneapolis, Minnesota, 2026.
34. GI Foreign Body Removal — Veterinary Surgery Service Inc., Fort Walton Beach, Florida, 2026.
35. Veterinary Surgery Pricing — Animal Works Veterinary Surgery, Fort Collins, Colorado, 2026.
36. Pricing Transparency — Integrity Veterinary Center, Northampton, Massachusetts, 2026.
37. Surgery Pricing — Affordable Animal Surgery, Las Vegas, Nevada, 2026.
38. Price Sheet (Surgery) — Veterinary Surgical Solutions, Austin, Texas, 2026.
39. Surgery Costs — Affordable Veterinary Surgery, North Carolina, 2026.
40. Dog Intestinal Blockage Surgery Cost — Lemonade Pet Insurance, 2025.
41. truInsights into Foreign Body Ingestion and Holiday Decor — Trupanion, 2024.
42. Pet Service Pricing — GQ Vet Clinic, Queen Creek, Arizona, 2026.
43. Pricing Transparency — Deer Park Animal Hospital, Deer Park, Texas, 2026.
44. Complex Surgeries Price List — Warm Springs Pet Hospital, 2026.