Petco Text Logo
Petco Pet Logo

My rabbit has a new lump under its skin. Is it cancer? Is it urgent?

Updated On September 23rd, 2025

Pet's info: Small Animal | Rabbit | Male | unneutered | 9 years old | 7.2 lbs

I found a lump under the skin of my rabbit's stomach about three months ago, I can move it freely but it's pretty hard, and is the size of a grape. I went to the vet and she said I should check it regularly to see if it increased in size (it didn't). The problem is that today I was checking him and I noticed another lump right next to the other one, about half the size. Is it's possible it is cancer even if it didn't increase in size after three months? Is it urgent? He's acting normally. Thanks

1 Answer

Most Helpful Answer

Image profile

Answered By Ana M, DVM

Veterinarian

Published on June 20th, 2018

Thank you for submitting your question regarding Gabi. I would recommend that he returns to the veterinarian for a procedure known as a fine needle aspirate. A small needle is used to collect a sample of cells from the mass. The cells are then evaluated under the microscope. The goal is to determine the type of mass and if it appears cancerous or not. This is not an emergency, but you will want to have him evaluated soon as he developed a second mass. I hope this information helps!

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored