Black spot on side of hamster.

Dr. Marie replied:

I'm guessing that what you are seeing on your hamster is a scent gland. Here is a picture of a scent gland on a hamster:



(Note, the hamster pictured above had some serious health issues that caused him to lose his hair, so he does not look well. But, I took the picture to be able to show people that a black spot on the side of a hamster is likely a scent gland.)

These glands are normal on Syrian hamsters. They are present on all males. Females do have them, but they tend to be much harder to see.

Sometimes scent glands can become infected which could cause the itchiness and balding. If this is the case, then the vet can prescribe a topical antibiotic cream that may help.

It's also possible for these glands to become cancerous.

And finally, it's possible that the problem is not with the scent glands, but as in the hamster in the picture above, there could be another condition that is causing hair loss such as cushing's disease or parasites such as demodex.

---This question was asked in our Ask A Vet For Free section.---



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