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My guinea pig has a lump on its bottom, but isn't bothered. Help!

Updated On September 23rd, 2025

Pet's info: Other | Unknown - Other | Male | unneutered | 4 years and 2 months old

I found a big lump in my guinea pigs bottom, it's ball shaped and it's the same colour as his skin. When I touch it he doesn't seem to be bothered. What should I do?

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on July 19th, 2017

Have him examined by your veterinarian or a vet experienced in treating pocket pets. A fine needle aspirate can be done to collect a sample for pathology. This may lead to a diagnosis. In the meantime, make sure he is eating, drinking and eliminating normally.

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