Hi Doctor,
I have developed tiny brown spots in groups and patches at many places on my arms, shoulders, and back. They seem to be harmless. I dont have itching, burning, or irritation of any sort. The only trouble is the cosmetic part of it. It shows up very well when I am wearing a t-shirt. Now it has started to appear near shoulder blades as well. I have these for many years now but has been growing gradually.