A common side effect of some medications, like antibiotics, is diarrhea or loose stool. This can also be attributed to the stress of surgery and hospitalization. Your discharge instructions from your pet's visit should contain advice if your pet needs to be on a bland diet to help prevent this. 

It's important to monitor your pets bathroom behavior and seek medical help if you notice any abnormalities, like blood. Please call us or your primary veterinarian if your pet develops or has prolonged diarrhea or loose stool.