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My hamster has a new lump on her stomach. Should I see a vet?

Updated On September 23rd, 2025

Pet's info: Other | Unknown - Other | Female | unspayed

There's a big bump on my sister's hamsters stomach and it wasn't there before. Is she ok?

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1 Answer

Most Helpful Answer

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Answered By Amy S. Eutsey, DVM

Veterinarian

Published on July 27th, 2017

This looks very suspicious of a mammary or breast tumor. These tumors can be cancerous or benign and do tend to grow very large very quickly. I would recommend that your veterinarian examine her and give you advice on whether it can be surgically removed.

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