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My hamster has hair loss, drinks more, and was inactive. What's wrong?

Updated On September 23rd, 2025

Pet's info: Small Animal | Hamster | Female | unspayed

My female syrian hamster didn't move for two days, and now is active again. The temperature was 70F which is ideal, she has safe bedding and a safe wheel, but she does have a balding patch on her side. She's alsp been drinking more. My vet doesn't know what it could be, do you have any advice? She is 1-2 years old and was rescued from a hamster mill, I adopted her and have cared for her for almost a year now.

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on June 16th, 2019

Hair loss in hamsters can be due to many things including: * Rubbing on metal cage feeders or excessive burrowing; usually the hair loss is around the face * Cage overcrowding, wounds from fighting, hair chewing by cage mates * Vitamin, mineral, or protein deficiency (general hair loss and not usually just a patch here and there) * Ticks, mites, and other ectoparasites * T-cell lymphoma * Thyroid gland hormone imbalance and inflammation of kidneys (rare) I would be a bit worried about her having T-cell lymphoma or a thyroid issue due to her age and the fact that she is not itching, sleeping more and drinking more. I suggest you talk to your vet about these possibilities. If your vet is not used to treating hamsters you may want to find one that is.

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