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My dog has blue/purple spots spreading on her stomach. Should I worry?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 5 years and 6 months old | 19 lbs

My female dog has these blue/purple spots on her stomach and it seems to very slowly spread. What is this? Does she need to see a vet?

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on July 12th, 2018

Blue and purple spots could be bruises and if they are spreading I would be worried that your dog may have a coagulation problem. This would be very serious and would need to be investigated. A small blood test will find out whether your dog is either suffering from a congenital blood coagulation disorder or possibly ate some rodenticide which can cause the blood not to coagulate. Of course it could also just be hyperpigmentation. There are various causes for that, one being an endocrine disorder where the adrenal glands produce too much cortisone (cushings disease). I would recommend you make an appointment for an exam with your veterinarian.

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