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My vaccinated Shih Tzu has bloody poop. Is it parvo? What should I do?

Updated on September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | 1 year and 1 month old | 20 lbs

My dog did poop and the poop had blood he have paroviruz vaccine and is a shih tzu what he could have

1 Answer

Most Helpful Answer

Jessica Desrosiers

Answered By Jessica Desrosiers

Veterinary Technician

Published on August 19th, 2019

Blood doesn't immediately indicate parvo, but parvo can cause bloody stool and no vaccine is 100%. Other issues such as irritation of the lower GI tract from allergies, illness, parasites, etc, can cause blood in the stool as well. It would be best to bring in a stool sample of Oso's to your vet and have him and it examined to find the cause.
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