My 4-month-old kitten has sudden runny, smelly diarrhea but is active.

I'm glad to hear that Shadow is still eating and active despite his diarrhea. In a young kitten, parasites are one of the most common causes of diarrhea, but other causes could include viruses, an upset stomach due to sudden diet changes, among others. Ideally, I recommend taking Shadow to his vet for a physical exam and fecal flotation test to check for parasites. You can also give him deworming medication, such as pyrantel pamoate (available at most pet stores), which may treat roundworms and hookworms. It is important to note that not every parasite is treated by every dewormer, so it would be best to test his stool to determine if/which parasite(s) are present. You can also try offering a bit of boiled white meat chicken as a bland diet for a few days, then gradually mix the bland diet with Shadow's normal kitten food over another 5-7 days. Avoid offering any treats, milk, or table foods, as these could exacerbate his diarrhea. If he becomes lethargic, stops eating and drinking, or

The most likely scenario is that she has intestinal parasites/worms. Very common in kittens even if they have already had a dose of deworming. I do not think it’s from the food. I suggest you get both kittens to your veterinarian for a exam and a fecal test.

Koko may have intestinal parasites still or colitis. She may have some food indiscretion or sensitivity. I suggest you take a fresh stool sample to your vet for a fecal exam. If she has parasites, she will need to be wormed/receive medication against the type of parasites present, again. sometimes worming has to be repeated. If she has a food indiscretion you will have to change her diet. Best to take her for a recheck to your veterinarian and discuss diet options with him.

Congrats on your new kitten, but I'm sorry she is sick! If she is eating a different brand of food from what she was fed at the shelter, this could be the cause of her GI upset (vomiting and diarrhea). Sudden changes in diets cause GI upset in cats, and they need to be transitioned slowly to a new food. I would withhold food for 8 hours, then feed a bland diet of boiled white meat chicken (no bones) in small amounts several times a day for a couple of days. Then slowly add back in her normal diet. If the vomiting continues in the absence of food, she vomits the bland diet, the diarrhea continues on the bland diet, she stops drinking water, starts vomiting water, or becomes very lethargic, she will need to see a vet right away. Best of luck, I hope this helps!

Poor kitty. It is very possible Shunki has a bacterial or parasitic infection. THe first step here is to take her to your vet to get her stools tested. If she has a parasite or bacteria imbalance, it can get treated quickly through your vet in most cases. Until you can get her in to be seen, its best to offer her plenty of water to keep her hydrated and perhaps even mixing 50:50 non-flavored Pedialyte with water to replace her electrolyte losses. You should also give her a probiotic daily such as Fortiflora or even over the counter Culturelle works well. I do hope that Shunki's diarrhea issues resolve soon! Best of luck and take care.

Thanks for using Boop by Petco! I suspect your kitten may have intestinal parasites. I recommend taking her to a vet with a fresh stool sample to check for microscopic eggs. They can then treat her with the necessary dewormer. Good luck and kisses to your kitten!

I would recommend that you take Storm to see a veterinarian. Common causes of diarrhea in a kitten are intestinal parasites like worms, coccidia, or Giardia. You can take a fresh (<12 hours old) stool sample with you so they can test it - called an intestinal parasite screening. If it is not parasites, other causes of diarrhea can be poor nutrition, food allergy, bacterial or viral infection, among a few others.

She is cute! She could have an infection or a parasite. You could take a stool sample to your vet and have it tested for parasites. If she hasn't been dewormed then an intestinal parasite is a definite possibility and your vet can prescribe a dewormer. She might also need some fluids to prevent dehydration. You could also add a probiotic to her food and see if that helps. Hope she gets better soon!

I am sorry to hear about your kitten! Unfortunately, GI parasites (such as roundworms, hookworms, giardia, and coccidia) are very common in kittens as a cause of diarrhea. Some of these can be treated with over the counter dewormer such as pyrantel (round and hook worms) but the others require prescription medication for treatment. It can also be difficult to dose the over the counter medication in a tiny kitten. I would recommend an examination by your veterinarian (Bring a stool sample with you) so they can check for these parasites. In the meantime, you can try picking up a probiotic from your vet or the pet store which will often help decrease the severity of diarrhea. Fortiflora by purina is the one we use most commonly (you can get that brand at your vet's office or online).

I would recommend you take Snow in to your veterinarian for an exam. She likely needs to have her stool checked for intestinal parasites so she can be given the appropriate de-worming medication, as many kittens are born with intestinal parasites. I would also be concerned about potential other causes of diarrhea, such as bacterial overgrowth or viral infections. She also needs to get started on her kitten vaccines and may need medication for the diarrhea and/or a diet change.