Bladder Cancer in Dogs

Category: Cancer
Breeds documented: 1
Published sources: 3

Overview

The most common urinary tract cancer develops from cells lining the bladder and related structures. It is called urothelial carcinoma, also known as transitional cell carcinoma. As it grows, it can make urination difficult and may eventually block urine flow. The cancer can also spread to nearby lymph nodes, the lungs, or other parts of the body.

Signs to watch for

Blood visible in the urine
Straining or discomfort while urinating
Urinating more often than usual
A weaker urine stream

Lower urinary tract tumors are diagnosed at an average age of about nine years.

Emergency Go to an emergency vet now if your dog strains without producing urine.

Diagnosis and tests

Vets use urine testing and imaging to investigate urinary signs and look for a bladder mass. Examining collected cells or a tissue sample can help distinguish cancer from infection and inflammation. A urine test for a BRAF gene change can provide additional evidence of urothelial carcinoma. Chest imaging checks for spread to the lungs.

Breeds with documented risk

1 breed

By breed size

1 Small

West Highland White TerrierSmall · Terrier Group

Inheritance

Not yet known
None of the sources we use states how this is inherited in dogs yet.

We've gathered what published sources say about this condition, so you can talk it through with your vet. It isn't veterinary advice: you and your vet know your dog best.