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Why is my hamster not eating and acting lethargic all of a sudden?

Updated On September 23rd, 2025

Pet's info: Other | Unknown - Other | Female | 11 months and 16 days old

Hello Doctor, my one year and 3 months female hamster is not having food and inactive in cage even in night too from yesterday night. I don't know what is wrong with her. Please help to get her well.

1 Answer

Most Helpful Answer

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Answered By Dr. Dayna, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on September 12th, 2018

I am so sorry that your hamster isn’t feeling well. There are many possible causes including injury, dental disease, organ failure, heart disease, and cancer. Is she eating? If she is not eating then the is at high risk for this being a fatal event. Hamsters can not go long without food. I would encourage you to have her evaluated by your veterinarian as soon as possible. Look her all over to look for any injury. Make sure she can get to food and water without having to move much. Best of luck and I hope she improves soon. Thank you for using Pet Coach.

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