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My cat's soft stool has blood. Is megacolon a risk without constipation?

Updated On September 23rd, 2025

Pet's info: Cat | Persian | Male | 2 years and 9 months old

A cat without persistant constipation could develop megacolon because the cats stool still contain blood either it is soft

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Answered By Amber W

Veterinarian, Certified Veterinary Acupuncturist

Published on February 1st, 2018

Megacolon usually occurs after chronic issues with constipation in a cat so if Bunty has had constipation issues then this is possible. Even one bout of severe constipation would be enough to cause megacolon. Bunty would need X-rays to diagnose megacolon. Frank blood like you are seeing in Bunty's stool is usually indication of an issue with the colon so something like inflammatory bowel disease could also be going on. It's important to have Bunty examined by a veterinarian to start treatment for these issues. He may need a prescription diet to manage his digestive issues. A stool sample should also be checked for parasites. Thanks for using Petco Pet Education Center, formerly Petcoach and I hope Bunty is feeling better soon!

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