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My hamster has a strange lump or growth. When should I see a vet?

Updated On September 23rd, 2025

Pet's info: Other | Unknown - Other | Male | unneutered

My robo hamster has a tumor growing on his leg/stomach area. It seems to have punctures so I am not sure if it is actually a tumor, a bite, or if he has been nibbling on it. I am not sure what to do about it.

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on April 3rd, 2017

You should take Graham to a veterinarian for an exam. This could be a tumor, an abscess or a cyst. The vet can find out which of the three it is. If the tumor is not too big, it can be removed. An abscess is easily treated (lanced and evacuated, flushed) and a cyst can easily be emptied as well. Do not wait too long with taking him to the vet, as tumors grow, and abscesses can cause really bad infections.

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