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My new cat has diarrhea with mucus and blood. When to see a vet?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 8 years old | 6 lbs

I just inherited a nine year old female cat. I've had her for a few day shy of a month. She has had diarrhea since she's been here. Is gotten slightly firmer but it still has a lot of mucus. Today I noticed a listen large bright red glob next to the litter box. Upon picking it up I noticed it was mixed with diarrhea. Should I be concerned?

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1 Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on January 4th, 2020

Congratulations on adding Mama to your family. I think I see a few streaks of blood in the stool but I'm not 100% positive. Obviously blood in the stool would be very concerning. The diarrhea could be due to many conditions including eating something she shouldn’t have, bacterial over growth, a new diet, parasites or even organ disease. If the diarrhea has continued beyond 24 hours, I recommend to have her examined by the veterinarian. If there is blood in the stool, she also needs to be examined. With continued diarrhea, there are often bacterial shifts in the gut that will make matters worse regardless of the initial cause. Make sure to bring in a sample of fresh stool. The doctor will check her for parasites and bacterial over growth. Many times a bland diet can help and then a slow, gradual introduction to the normal food can be done. A bland diet can consist of 25% boiled white meat chicken and 75% boiled white rice. This should all be plain. Cats can be finicky and she may not eat it however. I hope Mama starts feeling better quickly! Please feel free to post any additional questions.

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