My 5-month-old kitten has runny, green stool on meds. Is it serious?

These signs could be compatible with a colitis, which is an inflammation of the last part of the colon, usually related to dietary indiscretion. 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!

Thanks for using Petco Pet Education Center, formerly Petcoach! I'm sorry to hear your kitten is having issues. Based on what you are describing, I would be concerned your kitten may have an abscess on its side that is draining. I would recommend your kitten be evaluated by a veterinarian; if it is an abscess or infection, it would need antibiotics to resolve. There are multiple causes for diarrhea, including intestinal parasites, a viral infection, dietary indiscretion, food intolerance, or some other underlying issue. I would warm compress your kitten's side, and get in to see a veterinarian as soon as possible. Good luck!

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be due to the medication that Minu was on though it is hard to know without knowing which medication she was on. Diarrhea can be observed with conditions such as colitis, gastroenteritis, dietary indiscretion, intestinal parasites, among many other possibilities. I recommend that you have Minu evaluated by your veterinarian for further assessment and treatment. They may choose to check for parasites and to start medications for diarrhea depending on the results. Good luck! Hoping for a speedy recovery!

I strongly recommend an urgent vet check and fecal exam - profuse diarrhea and inappetance is very serious in such a young kitten and could rapidly lead to severe dehydration and debilitation. Offer only bland feeds of boiled chicken, fish or egg in the meantime, with an added probiotic such as fortiflora

Stress can definitely cause changes in eating, drinking, and stool habits, however the green color makes me worry that there may be an underlying health issue as well. Green stools can sometimes indicate issues such as too-fast of transit time in the bowels (so the normal bile isn't broken down into its usual brown color), liver or gall issues, pancreas issues, illnesses caused by bacteria, or ingesting something that is greenish or dyed in color. I would offer Keanu a bland diet of some boiled chicken to see if that helps resolve the diarrhea (and give him some extra attention and care, since cats deal with loss and grief just as much as people) and continue to monitor his stools. If the diarrhea or strange stool colors continue, bringing Keanu and a sample of his stool to your vet is a good idea to rule out more serious issues.

Hello. At 4 weeks of age, you should be weaning these kittens onto a good kitten food. 50 ml of milk 3 times a day may just be too much for them, especially if the kittens are less than 1 pound. The other very big cause of diarrhea in kittens is intestinal parasites. I would bring a sample of the stool to your veterinarian & have it examined microscopically. If anything is seen, then the appropriate treatment can be started. Thanks for using Petco Pet Education Center, formerly Petcoach.

Thanks for using Petco Pet Education Center, formerly Petcoach! Diarrhea can be observed with conditions such as colitis, gastroenteritis, dietary indiscretion, intestinal parasites, among many other possibilities. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. They may choose to check for parasites and to start medications for diarrhea depending on the results. Good luck! Hoping for a speedy recovery!