Petco Text Logo
Petco Pet Logo

My cat has recurring lumps after vet visit. Are they cancerous?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 5 years and 11 months old | 16 lbs

6 weeks ago we took our cat to the vet with a cyst, she cleaned him up and sent him home with antibiotics but since the antibiotics have stopped we've noticed 2 more. Being tight for cash we can't afford another vet trip. Can this be cancerous or am I just an over concerned cat owner? photo attached is his first cyst after the vet visit. This one has healed but there are 2 smaller ones.

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

2 Answers

Most Helpful Answer

Image profile

Answered By Destini R. Holloway, DVM

Veterinarian

Published on December 7th, 2017

The picture only shows an open wound. I don’t see any tumors to speak of. So unfortunately we can’t tell if the additional masses look suspicous for cancer or not. However this open wound looks gnarly and the tissue doesn’t look happy. And the only way to confirm or deny cancer is to have the masses tested and sent to the lab. However some masses are more suspicous for cancer than others. Please feel free to repost your question with a picture of the masses that you are concerned about and we will be more than happy to give you our opinion. Best wishes and take care.

Vote icon

1Pet Parents found this answer helpful

Related Answers from Veterinarians

  • Image profile

    Answered By Maria DVM

    Veterinarian

    Published on January 26th, 2018

    Unfortunately masses on cats I would not just ignore. What you can do from now on is when you find them have your veterinarian take an aspirate of them and either evaluate them under a microscope or send slides out to a pathologist to evaluate them. You may not always get a definitive answer but if you find out the growths are benign then at least you don't have to worry about them. Also if you find one that is cancerous you know that surgery is the best option at that point. Thank you for using Petco Pet Education Center, formerly Petcoach.

    Vote icon

    1Pet Parents found this answer helpful

See More Answers
image
Have A Vet Question?

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

Sponsored