What is it?
Answers: What you described could be a type of skin cancer on the testicles ... are the borders of the spots 'regular' (round or oval) or irregular (like an island next to 'bays')? Are the spots raised or 'flat'? Are the spots 'weepy' near either white or pink fluid coming from them? If the spots are irregular, or raise, or weepy, or more than one of those, you should see a dermatologist to determine whether you need surgery. Other than that, though, testicular cancer commonly shows up as 'lumps under the skin' that are attached to the 'ball' inside the sac, and they also 'hurt' ... so do a polite 'self examination' and decide if you really judge you need to see a doctor or not. You can jump to ANY internist for that first exam ... you'll be sent to the proper type of doctor if the 'spots' on your testicles are suspicious.
testicle cancer is usually about lumps and shyt approaching that, i don't know anything about spots, you should probably procure that checked out