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Early Cancer Detection for Dogs

Screen Your Dog for Cancer With a Simple Blood Draw

People get mammograms and colonoscopies, and other cancer screening tests to help detect cancer early. Now, our dogs have OncoK9, a cancer screening test developed specifically for them, ushering in a new era of preventive care for pets.

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Discover OncoK9

Learn more about OncoK9 and share information about the test with others.

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Locate a Veterinary Clinic

Find an OncoK9 provider near you with our Clinic Locator.

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Get Notified About Cancer SAFE

Coming soon... Find out the recommended age to start screening your dog for cancer.

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OncoK9 Is Available Through Most Veterinarians in North America

If you did not find your veterinary clinic in our Locator tool, it is likely they still offer OncoK9 through one of our distribution partners.

Ask your veterinarian if they offer Antech or IDEXX tests and give them the information below to look up OncoK9 in their system.


USA OncoK9 Test Code: S14493


CANADA OncoK9 Test Code: CS14493

IDEXX Reference Laboratories

USA OncoK9 Test Code: 8972


CANADA OncoK9 Test Code: ONCOK9

6 Million New Cancer Cases Per Year in Dogs

Lifetime Risk of Cancer: 1 in 3 Dogs
Cancer is by Far the Biggest Threat to Dogs and the #1 Cause of Death

What is Cancer Screening?

Just like in people, cancer screening should be an important part of preventive care in dogs; the goal is to look for cancer when your pet is feeling well, before they start to show any clinical signs.

During wellness visits, your veterinarian may look for early signs of cancer in your dog by performing a thorough physical exam and asking you about any concerning observations. Your veterinarian may also perform routine blood and imaging tests, and may recommend OncoK9 - a new blood test that could detect cancer before your dog shows any clinical signs.

Why is Early Cancer Detection Important?

Early detection and treatment are the best ways to manage cancer in pets... cancer is frequently treatable and early diagnosis will aid your veterinarian in delivering the best care possible.

American Veterinary Medical Association

What is OncoK9?

The OncoK9 liquid biopsy test uses a simple blood draw to detect abnormal DNA released into circulation by cancer cells.

Simple blood draw

Blood Draw

OncoK9 requires only a simple blood draw. The sample collection can take place during the same visit when the veterinarian prescribes the test.

Multi-cancer coverage


OncoK9 can detect 30 different types of cancer, including 8 of the most common cancers in dogs.

Cutting-edge technology


OncoK9 uses state-of-the-art next-generation sequencing (NGS) technology to detect changes in DNA that are indicative of cancer.

Early detection


OncoK9 may help detect cancer early, when your dog still looks healthy and has the best chance of defeating the disease.

What Dogs Are Candidates for OncoK9 Cancer Screening?

Dogs Age 7 and Older

Older dogs are at higher risk of cancer, regardless of breed. Consider adding OncoK9 to their routine wellness exams.

Dogs 8 and Older Have a Higher Risk of Cancer

Dogs Predisposed to Cancer

Some dogs are at higher risk of cancer due to their breed, and may benefit from cancer screening starting at an age younger than 7.

Certain Breeds Have a Higher Risk of Cancer at Younger Ages

Common Breeds Predisposed to Cancer

Labrador Retriever
Labrador Retriever
French Bulldog
French Bulldog
German Shepherd
German Shepherd
Golden Retriever
Golden Retriever
Siberian Husky
Siberian Husky
Bernese Mountain Dog
Bernese Mountain Dog
Rhodesian Ridgeback
Rhodesian Ridgeback
Flat-Coated Retriever
Flat-Coated Retriever

Giant Breeds Predisposed to Cancer

Scottish Deerhound
Scottish Deerhound
Great Dane
Great Dane
Irish Wolfhound
Irish Wolfhound

This list is derived by intersecting breeds known to be at higher risk of cancer with breeds that are common in the United States (in order of AKC popularity); the list is not exhaustive, and other breeds may also have a high risk of cancer. OncoK9 may not currently detect all cancer types to which certain breeds are predisposed. See the list of cancer types currently detectable by OncoK9 here:

OncoK9 – Aid in Diagnosis

When veterinarians identify clinical signs or other clinical findings that may lead them to suspect cancer, they may choose to prescribe OncoK9 as part of their clinical workup.

Cancer Site is Suspected but Challenging to Access
Cancer is Suspected but Site is Not Clinically Evident

Common Signs of Cancer in Dogs

If you observe any of the following signs in your dog, schedule an exam with a veterinarian.

  • Decreased or absent appetite
  • Nausea and/or vomiting
  • Unexplained weight loss
  • Difficulty breathing or shortness of breath
  • Bloating or abdominal swelling
  • Unusual odors (malodorous discharge and/or bad breath)
  • Lethargy or exercise intolerance
  • Difficulty chewing or swallowing
  • Weakness and/or collapse
  • Pale gums or tongue
  • Limping or lameness
  • Sores that do not heal
  • Bruising and/or bleeding and/or petechiation
  • Increased frequency and/or volume of urination
  • Painful and/or bloody urination
  • Changes in stool
  • Increased thirst
  • Mass(es) and/or lump(s)
  • Enlarged lymph node(s)
  • Difficulty urinating or defecating

OncoK9 – Available by Prescription Only

As with any laboratory test, OncoK9 results should be interpreted by a veterinarian in the context of each patient's medical history and clinical presentation. To read detailed OncoK9 test information, please click here.

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