that's not true i'm having the same problem. i slept with a African girl some time ago. She had dark spots all over her body. i thought it was just part of her skin tone, but a few months latter I started getting dark spot over my body. it started on my penis and has spread to alot of my body.
I've seen people with this problem out in the street but have never heard anything about it because i think most people think it's like a birth mark or something. I would also like to know what it is because it's spreading.
i think it spreads through the seemin. I got some on my girlfriends face and she has a large brown spot that is now spreading.
because no STD has that symptom or anything close to it
How can you be sure its not a STD?
See a Dr, no clue what it is but it's not a STD.