Canine Bleeding Caused By Blood Cloth or Infection

by Josh
(New York, NY)

Reader Question: Is a Blood Clot Causing My Canine To Bleed?

Our Westie had 2 bladder stones (oxalate) removed, but 6 weeks later, he is bleeding again. He had MRSA right after the surgery which has been treated with antibiotics. The vet took an ultrasound yesterday and found a mass in the bladder that was not detected previously. She suspects a blood clot or infection and wants to take another ultrasound in 2 weeks.

Any idea what else it could be?

Veterinarian Responds With Possible Causes For Canine Bleeding


Based on your dog’s history, I agree that a blood clot or infection is the most likely culprit and think that, as long as your dog seems to be feeling okay, repeating an ultrasound in two weeks to monitor how the mass is changing with therapy is an excellent plan.

Other potential causes include an inflammatory lesion, scar tissue, or perhaps a tumor, although I think this last possibility is quite unlikely given the fact that your dog’s bladder was thoroughly examined in the not too distant past.

Best of luck,

Jennifer Coates, DVM

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