My new 2-month-old kitten has a lump on its back. What's wrong?

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! It could be a small cyst (non cancerous growth) from epidermal origin, or potentially a small abscess that has not yet reached the point of rupture from a sting or bite. If it is possible I would suggest clipping the hair short to get a better look. If you can get a picture, this would help us to better help you out. Likely Freya will need to see a vet for either a drainage of this or a removal if the mass becomes bothersome. Antibiotics will be warranted if the mass ends up being an abscess that is currently brewing under the skin. I hope this helps! Please resubmit if you can get some photos! We'd love to be as accurate as possible.

Hello. It is very unlikely that this is cancerous, but what it actually requires is a hands-on examination. My first inclination is the presence of a single fly larva under each swelling. Warble flystrike is a common problem in young cats during the summer. This may also just be what you described, some type of benign cyst, but It is unusual enough that I really recommend letting your vet take a look at this. Thanks for using Petco Pet Education Center, formerly Petcoach.

Thanks for using Petco Pet Education Center, formerly Petcoach! No, lumps are not normal. In a young kitten, these may represent small abscess or focal infection sites. I recommend that you have Luna evaluated by your veterinarian for further assessment and treatment. Therapy would be based on findings. Good luck!

Hello and thank you for contacting Petco Pet Education Center, formerly Petcoach. I suspect this is either allergic reaction or developing abscess. Please, take Sweet to your local vets for an appointment as she will likely need treatment with either antibiotics (for abscess) or anti-allergic medication (steroids or antihistamine medicine).

Hi and thank you so much for your question on Petco Pet Education Center, formerly Petcoach! It is hard to say exactly what it may be sight unseen (can't get a good look or feel from the picture), I can certainly offer a few possibilities. It may be just a scab from playing rough or bumping into something. It also could be a small abscess from one of her vaccines she received previously-that sometimes can happen and is quite common. Another possibility would be a bite wound from another cat or a fungal or bacterial infection. If the lesion feels like little millet seeds, it could be a flea allergy (especially if she is not receiving a month to month flea preventative). If it gets worse or does not improve in a few days, I would bring her into her primary care veterinarian an exam and diagnostic testing. Best wishes to you and Biscuit!

Thanks for using Petco Pet Education Center, formerly Petcoach! It is very hard to see in these pictures. This could be a benign or malignant growth. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!

Thank you for using Petco Pet Education Center, formerly Petcoach! It is difficult to see a lump in the photo, but at Capernicus’s age, malignant growths are fairly unlikely. This may be a reaction to a vaccine if administered recently that should disappear with time. I recommend keeping an eye on it and having the spot seen by a vet if there is any discharge, bleeding, increase in size, or it seems to be bothering him. I hope this helps and that all is well!