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My 3-year-old hamster is suddenly hyperactive. Is this a bad sign?

Updated On September 23rd, 2025

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

My hamster has always been very lazy, but all of a sudden he goes berserk. Climbed the cage everywhere, started running everywhere. He's almost 3, this is very unusual. Where did he get his adrenaline from?

1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on December 5th, 2016

Although usually the opposite happens at this age, this could actually a bad sign, possibly a tumor affecting the brain or the hormonal system, or just him being very uncomfortable or in pain due to a disease. His age is very advanced, most hamsters do not make it to this age even in captivity, I would advise you to take him to the vet for a checkup ASAP.

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