Gerbils & Hamsters/please help


hi i have a male hamster i got off craigslist and yesterday 5/5/2013 and it is a male and i was wandering if one of the  males could turn into a female so they could breed ????????????

and one of my hamsters has two bumps on his sides and i don't know if he has cancer or not .............

please help

Hi Zoee

Thanks for your question.

Hamsters do not change sex. Regarding the bumps you mention if these are on his rear end they could be testicles - these can be quite prominent and sometimes appear lopsided or uneven.

If these are on his hips then they could be scent glands. These are symmetrical on the hips and sometimes have a brown spot on them - sometimes they are bald in this area and some hamsters lick them a lot - this is normal.

I hope this helps.


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Sheila Adby


Syrian hamsters are my specialty, however, I have kept Campbells,Winter Whites and gerbils in the past. I can advise on most subjects associated with hamsters, including housing, bedding, feeding, handling, new borns and catching escapees. I have had some experience of various health problems with hamsters and can offer my opinion and advice on basic health issues, however I am not a qualified vet and therefore cannot recommend drugs etc. My website is


I have been keeping hamsters and other small animals for more than 12 years. My favourites are Syrian hamsters and I foster litters and 'difficult' hamsters for a rescue centre. My job is to tame hamsters ready for re-homing, which is extremely rewarding. I also enjoy looking after new litters and raising the pups. I have co-written a book on hamsters with my local vet and have a website:

Hamsters in Sickness and in Health - Sheila Adby and Dan O'Neill ISBN186163218-5 (Capall Bann Publishing)

Educated to A Level standard in the UK.

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