Why is my 2-month-old kitten tiny, not growing, and suddenly lazy?

Hi and thanks for posting on Petco Pet Education Center, formerly Petcoach! Lack of growth and failure to gain weight in a kitten can be due to a number of medical causes- viral or bacterial infections and parasitic infections could be potential causes among others. I would recommend having the kitten seen by a veterinarian for an exam and assessment. You may wish to bring a fresh fecal sample to the vet appointment in case your vet wants to test the kitten's stool. I hope this helps and thanks for using Petco Pet Education Center, formerly Petcoach!

I agree that it sounds like Buckwheat is the runt of the litter, and they do tend to struggle more than their littermates. You are doing the right thing by supplementing with KMR, and he's unfortunately still too young to wean him. I'm not sure how often you are feeding him with KMR, but I would discuss with your vet increasing supplementation to try to get him to gain some weight. Also make sure he is up to date on his deworming treatments, as intestinal worms can prevent him from gaining weight. Finally, I would have him seen by your vet to discuss additional meals with KMR and the vet may have other suggestions to help him thrive.

Kameo is adorable! She may not get much bigger if she has not grown much in the past 6 months. This is not normal per se for cats, but may be common for runts of the litter. Nutrition may help with this as well as ruling out any underlying medical conditions heart, liver, kidney issues through a throrough physical examination by a veterinarian + screening bloodwork. A top rated food that I recommend for a cat of this age is Royal Canin Kitten dry and wet food. It is highly palatable (most cats love the taste) and provides better nutrition than many other commercially available brands of cat food. I recommend transitioning gradually over the course of a week into the Royal Canin Kitten diet (1st 2 days 75% old food 25% new, 2nd 2 days 50%/50% old/new and last 2-3 days 25% old/75% new). You will likely notice an improvement in Kameo's coat and skin health on the Royal canin diet. If she does not grow significantly by the time she is a year of age....continue her on the Royal canin adult cat food, maintain her at a good body condition score (not too far or too thin), and give her lots of love! Kittens like people come in all shapes and sizes!

Sometimes kittens are born as dwarf and will not grow much. This is a rare congenital disorder. More often kittens that do not thrive or grow normally have a congenital heart defect or a liver shunt. I suggest you have Foxy examined by a vet to rule out the latter problems, as there will be healt implications for her future life. Here is some information on those conditions: https://www2.vet.cornell.edu/departments-centers-and-institutes/cornell-feline-health-center/health-information/feline-health-topics/portosystemic-shunt https://www2.vet.cornell.edu/departments-centers-and-institutes/cornell-feline-health-center/health-information/feline-health-topics/congenital-heart-disorders

What a cutie! She looks healthy but being so small is a concern. I do recommend a veterinary exam when she’s due for vaccinations and checking a fecal sample for intestinal parasites. Some kittens grow at a slower rate so I’m not overly concerned about it yet, but if she doesn’t grow then she may have a medical problem that should be addressed. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Tobi.

These are certainly concerning behaviors for your young kitten. I would be suspicious of intestinal parasites causing the problem, especially if he/she has not yet been wormed. I would recommend taking your cat in to the vet to be checked out and make sure nothing too serious is going on. Hopefully it is something simple like parasites that can be treated easily. Best of luck!

Poor Lucky! There are several causes for a swollen abdomen like parasites and fluid in the abdomen. I would have your vet take a look at him as soon as you can to see what the cause is. If there is fluid in the abdomen, it could be a serious condition that needs to be treated. It could also be FIP which isn't treatable but he needs to be seen to be diagnosed. Hopefully, since he is still eating, he just has some intestinal parasites which your vet can easily treat. I hope this helps and he feels better really soon.