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My old hamster has a new lump on its bottom. Is it a tumor? What can I do?

Updated On September 23rd, 2025

Our hamster seems to have developed a large bald lump on his bottom. He is almost three years old. He has had a small lump next to his eye since he was about one and the vet said that there was nothing he could do about this.

1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on June 4th, 2018

I would need to see it to confirm but it is probably a tumor, in hamsters these tumors are usually malignant and not treatable, surgery is a possibility but it would personally not recommend it. other than that there is very little that can be done, if the lump ulcerates then antibiotic treatment can be attempted to treat the secondary infection.

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