I have noticed there is sort of white area on the penis, sometimes it gets sort of white powder. I only have protected sex, and this scared me a bit. I did STD test and all negative. Once u use soap to wash it, it gets irritated a bit. What is this thing called? and is it curable?
Here's a photo of it
https://42cdn.com/b2api/v1/b2_download_file_by_id?fileId=4_z6177fca890d8c37157cc0814_f101259c0fa9c0971_d20180111_m114225_c001_v0001099_t0049