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Why is my cat's poop loose and light-colored for over a week?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 2 years and 3 months old | 11 lbs

My cat has had loose, light-colored but not fully liquid stools for over a week now. He's up to date on vaccines, has no contact with foreign plants or animals, just the one other cat we have who is also vaccinated. No blood, no vomiting, no loss of appetite, just consistently loose stools. He is eating the same food he's eaten for a year, but he did have a period recently of also eating meow mix, but he has been fully back on his regular food for over a week now and still having these stools.

1 Answer

Most Helpful Answer

Dr. Rachel

Answered By Dr. Rachel

Veterinarian

Published on July 8th, 2017

Sometimes even a simple diet switch from one food to another is enough to cause intestinal inflammation or bacterial imbalance and diarrhea in cats. Though his risk is low, it's also possible he could have an intestinal parasite (cannot be ruled out without a fecal test). You can try adding one tbsp of canned pumpkin to his diet for fiber. If he does not improve soon, it would be best to take him to a vet. Sometimes a short course of medication is necessary to resolve this type of diarrhea.
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