that means that you have a rare disease from the U.S... i just discovered this and i am wondering about how many people have been diagonosed........ Go see your doctor and he will inform you what to do about it......
This is sort of a normal thing, it is because of the hair folicles. They gather up too close together in places like your thigh, knees, chest, etc. The best way to get rid of them is to apply lotion...
Check with your doctor, but I had something like that once and it ended up being an irritation from my soap. Your testicals are nothing to mess with. Go see a doctor.
I guess,its an alergies and you can also should visit dermatologists about that, but for the meanwhile, you can help yourself with your skin by using lotions or such with Phytessence Wakame, Cynergy...