Unknown black spot on hamster

Question
Thank you very much for the info!!! I really appreciate it. Would you happen to know of any websites with photos of the glands (the black spot) so i could compare it to hers? Ive looked online, but Ive had no luch. If not, thanks a bunch anyways, you've been a great help.  

Answer
Dear Lindsey,
thanks for the rating :)
I found one picture here:
http://www.diebrain.de/pix/hi/Flankendr%FCse.jpg
and here is a picture of my hamster Morpheus who lost a bit of fur around the glands (the opicture is not very clear, but I drew a circle round the spot):
http://www.arcor.de/palb/alben/80/94180/400_6565616464373264.jpg

You can also see where he lost fur on his hind leg, the darker area betwen the red circle and his tail, which happened because of his age. But even older hamsters should be checked for mites and fungal infection when they loose fur.
Have a nice day
Jennifer