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Why is my active kitten's diarrhea changing colors? Is he okay?

Updated on September 23rd, 2025

Pet's info: Cat | Asian | Female | unspayed

My kitten is having diarrhea but the kitten seems to be good and active but have problem for short time when excrete, the poop of the cat was dark black and hard on day before 4th days and 3rd day siltely loose but black ,on 2nd day it become yellowish water type and today it loose type but reddish colour I am confused whether he is okay or having problem

4 Answers

Most Helpful Answer

Published on October 24th, 2019

These type of feces are definitively not normal.
As a first approach, I would suggest to start feeding with a bland diet based on boiled chicken and rice in small portion every 6 hours for the following 48hours. Then gradually reintroduce the normal diet over 5 days.
I would definitively recommend a veterinary check up if the signs persist or you notice vomiting, lethargy or inappetence.
Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!
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Related Answers from Veterinarians

  • Answered By Lindsey Edwards MVB, BSc, IVCA

    Veterinarian

    Published on September 16th, 2017

    Poor Hope! Worms, stress, change in diet, viral infections and eating strange things such as house plants can all contribute to diarrhea in kittens. Given the weakness I recommend a full check up as soon as possible

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    1Pet Parents found this answer helpful

  • Answered By Rodrigo Roca, DVM

    Veterinarian

    Published on October 23rd, 2017

    Hello, sorry to hear about Lisa. It could be that the change in food could be causing the diarrhea and she needs some time to adjust to the new diet. Additionally, she could be infested with intestinal parasites that may be contributing to the diarrhea. Finally, some viral infections can cause diarrhea as well.

    If the diarrhea does not resolve in the next 2-3 days then you should have Lisa evaluated by a veterinarian. Also monitor for any signs of lethargy, decreased appetite, or vomiting and have her evaluated by a veterinarian if you note any of these.

    Hope this helps and best of luck.

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    1Pet Parents found this answer helpful

  • Answered By Dr Stafford, BVetMed, MRCVS

    Veterinarian

    Published on October 22nd, 2017

    Yellow liquid sounds like bile, it is produced in the gall bladder then released to help digestion. However it can be quite irritant to the stomach if there are no contents and sometimes causes vomiting. It could be that he is overproducing bile or simply has a sensitive tummy. It might be worth leaving him some biscuits out overnight to see if feeding helps settle him. Otherwise your vet will be able to give him a thorough examination and decide if he needs further investigations. Best of luck.

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    1Pet Parents found this answer helpful

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