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My hamster's fur around his butt is matted and falling out. Why?

Updated On September 23rd, 2025

Pet's info: Other | Unknown - Other | Male | 2 years and 5 months old

My Winter White hamster which I have keep it for about a year and 8 months now, the fur around his butt keep sticking together recently. Then you will find bunches of fur in his cage. Why is the fur loss?

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1 Answer

Most Helpful Answer

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Answered By Megan, DVM, CVA

Veterinarian

Published on June 6th, 2017

I am sorry that sesame isn't himself right now. My biggest concern is that something is causing the crust in the hair on his rear end. He potentially could have a wound, skin infection, parasites or even diarrhea. The hair is likely falling out secondary to this dried debris and him potentially chewing. I would strongly recommend you contact your veterinarian for an exam so they can figure out what is causing the fur to stick together in the first place and possible medications if needed. I hope this sweet boy starts to feel better really soon!

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