Is the color of the spot dark brown?
Does the spot have rougher texture?
Has this spot began just as a reddening?

It may be some extra tissue on your skin. The color of it probably doesn't matter. But is the texture different from the rest of your skin? Ask a doctor if you are very concerned,

heii..i have the same problem..i been having a skin discoloration in between my breast!! i been searching the internet for anwers on what it can be...I have found no answer yet..but im still looking..well if anyone has a clue on what it can be please do tell..any home remedies...or creams??? that i can use..please let me know...thnk....

Do you have same discoloration under your breasts?

I have one breast that is 3/4 discolored. I had a mamo and ultra sound but they said it showed nothing. The problem is that it's been that way for over a year. My doctor was really scared for me when she seen it and sent me for the tests immediately. The nipple is drawing in and the breast has gotten bigger. I have pain which comes and goes. No discharge. But it still worries me the way the doctor was so nervous.