My pup has a dark blemish on the back of his rear testical about the size of a quarter.  We noticed it late in the winter.  It was a very cold winter here in Vermont and i thought he may have gotten frost bit, since he was always outside.  I have a vet appointment for next week so hopefully they can shed some light on what it is... or that it is nothing.  once concern that i have, is that it could be skin cancer or something terrible like that.  has anyone else seen anything like that?  

Dunkan is 1 year and a little over a month.  I don't think it is a mole... but perhaps it could be.  it is not raised.  just dark and wrinkly.  this winter it got darker and more pronounced when he was out in the cold... so i'm hoping it was just a little frost bite from one of our 10-20 degree below zero days.   We tried to keep him in during those days, but he loves to be out side!

Thanks for the good vibes! 

My dog is the same age as your and she has blemishes on her belly area too.  They seem to come and go.  The vet said they are normal and not to worry.  They are always there, but get lighter than darker.  Worried us at first, too, but not anymore.

I'll see what i can do.  i should be able to post a pic.  it sort of looks a chaffed prune.. lol ... sort of wierd.  the vet also said since he has such short hari i'll probably notice more markings on him as he ages.