Why is my 10-week-old kitten's poop dark after shots or deworming?

Hello, thank you for using Petco Pet Education Center, formerly Petcoach! Never be sorry about including a photo. We appreciate it! If she is eating and drinking and acting normally I would not consider this an emergency. Give it a couple days to see if the stool firms up. I would not really be worried unless the stool becomes very watery. Hope this helps. Best wishes!

Hi there. Some pets may have some mild GI upset after vaccinations, so this certainly could be normal. If he's acting normal otherwise (eating and drinking fine, no vomiting, etc.),. then it should be okay to just monitor for now. If it doesn't resolve in the next 2-3 days, or if he develops any other symptoms such as vomiting or not wanting to eat, then I would recommend having him checked by your vet to make sure nothing else is wrong.

It is not a typical reaction to the feline distemper vaccine. If he is otherwise acting fine then you could withhold food for 12 hours and see if the vomiting and diarrhea resolves. If not, he should be rechecked by your veterinarian to determine the cause and treat. Your veterinarian can prescribe medications to help control the vomiting and diarrhea. Your vet can test a stool sample for parasites and then prescribe a dewormer, if needed. If he is lethargic then he should be examined as soon as possible. Hope he feels better soon.

He needs to be seen by a veterinarian for a wellness exam. He may not be able to poop and may be constipated, or he had so many worms that all the dead worms are making him ill. Keep him warm, entice him to drink water, and should he deteriorate he needs to be seen at a petER tonight.

Vaccines can give a kitten diarrhea for a day or two afterwards, and it's a good since that he is otherwise acting normal. It could also be that he has intestinal worms, and I would make sure he is up to date on his deworming treatments. Panacur is a brand I recommend to give to kittens, it's a three day course of treatment you can get OTC from a pet store or your vet's office. You would have to give Henry a second course of the treatment two weeks after the first ends to kill all the worms. He should then be dewormed every month until he is six months old, and then every three months thereafter. If he is up to date on his deworming treatments and the diarrhea doesn't clear up in 48 hours, then I would take him into the vet for an exam. You can try feeding him a bland diet of boiled white meat chicken (no bones) in small amounts to see if that helps as well. If it does help, continue the bland diet for a couple of days, and then start slowly adding back in his normal diet. I hope this helps!

Poor Ash! He could have a parasite, infection, congenital abnormality, etc. He really needs to be seen by a vet as soon as possible. Your vet can test a stool sample to help determine the cause and then prescribe medications to treat. You could try to find a low cost clinic or try the Humane society in your area and see if they can help. Hope he feels better soon!

Thank you for submitting your question regarding your kitten. If he is not improving, then I recommend that he has a further work up. He should have fecal testing, blood work and x-rays of his abdomen to determine the cause of his vomiting and inappetance. Kittens can react to deworming medication, but it is typically a short lived reaction. It worries me that he is still ill. There is likely another another disease process present. In the meantime, encourage him to drink so that he does not become dehydrated. I hope this information helps!