I have a strange discolouration on my scrotum and wondering what it is. The affected area is a around 2cm of diameter and is very white in colour, almost like a complete lack of pigmentation. It looks almost like a birthmark as the colour is so different however here is the strange thing, I am 35 and I have never had this mark up until 1 year ago so it is relatively new. There is no itchiness, swelling, redness, or cracking. The skin is otherwise normal. Any idea?