What is this changing lump on my cat that doesn't seem to hurt her?

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 contacting Petco Pet Education Center, formerly Petcoach with your question about Monkey. First off, love her name! Fatty lumps can grow to be quite big over time, but it is worth getting checked out. Any suspicious lumps should be examined by the vet. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of its cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Once the cause of the lump is diagnosed, the vet can discuss treatment options if needed. Give her vet a call to make her an appointment. I hope this helps!

Thanks for using Petco Pet Education Center, formerly Petcoach! 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 him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!

Hi and thank you for using Petco Pet Education Center, formerly Petcoach. I cannot tell where the lump is on the photo but most if not all lumps needs to be evaluated by a vet. Especially in Simba's case since the lump has gotten swollen. Your vet will perform a full physical exam and determine if the lump needs to be aspirated. Lumps can be anything from an abscess, mass/growth, hernia etc. Your vet will determine after an exam what the next best steps and treatments are. 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).

Thanks for using Petco Pet Education Center, formerly Petcoach! 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 him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. This is likely from her mammary gland. There is no way of knowing for sure without an examination though this represents a reason to seek veterinary care. This is usually determined with an examination and a fine needle aspirate (FNA) or a biopsy. Treatment depends on the findings up to that point. I recommend you have Dahlia evaluated by a veterinarian for further assessment and treatment. Good luck and have a good night!