My hamster has a strange mark on his skin. Should I be worried?
Updated On September 23rd, 2025
Pet's info: Small Animal | Hamster | Male
I went to take my hamster out his cage for a while and sat him on my chest as i was touching his fur i noticed this on his skin And i am not sure what it is and if i should be worried about it
2 Answers
Most Helpful Answer
Published on July 28th, 2019
That looks like a wound of some type. Maybe from another hamster or a toy or bar in the cage? There could also be a small mass or cyst that's open. Keep that area clean and have a vet check that out in case he needs antibiotics.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on April 28th, 2019
Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. It is likely that your veterinarian was referring to a keratin-filled cyst. Keratin is a molecule that makes up skin and nails, so accumulations of it can form firm, callous-like lumps. It is OK that it has fallen off. Just make sure the area does not appear to continue to bleed or cause your hamster irritation - i.e. he tries to scratch or bite at it. I hope this is helpful! Thanks for seeking help from a veterinarian for Rex!
1Pet Parents found this answer helpful
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