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Updated on September 23rd, 2025
Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 6 months and 12 days old
My dog just threw up the back end of a MOUSE OR RAT!! I just saw the little feet and tail!! He had diahorrea this morning but that seems to have gone normal now but he's just had a drink and was sick after and the mouse was in with a few chunks of food. What do I do?! Will it cause any harm???
2 Answers

Answered By Laura Johnson VMD
Veterinarian
Published on September 3rd, 2017
Answered By Dr. Dayna, DVM, CVA
Veterinarian, Certified Veterinary Acupuncturist
Published on November 20th, 2017
If there is any chance that the mouse was poisoned then I would seek help right away. Otherwise there is probably little other risk. It is possible that it could cause some gastrointestinal problems such as vomiting or diarrhea, but there is nothing you can do to really prevent that. Also- if the mouse had fleas then then he could potentially get tapeworm. If it just now happened then you could take to your veterinarian to have them induce vomiting, but I would probably only do that if you were concerned about the mouse being poisoned. Best of luck and thank you for using Pet Coach.
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