hamsters behind is swolen

Question
i have just been looking at my chinese dwarf hamster an have noticed that its bum  has gone very big and long do u know why

Answer
Hi Coral

I'm assuming this is a male Chinese?  If so, their rear ends can be very large, which is perfectly normal for them.

If you go onto my site: http://www.thehamstersite.com/chinese.htm and have a look at these photos.  Does your hamster look like the one on the top right hand side?  If so, this is perfectly normal.  If not, do you want to send me a photo?

Regards