ok, first up, im asian so yea, im normally tanned.

but over the year my skin has kinda paled, most of the covered spots, eg. torso, theighs, shoulders to elbows (upper part of my arms)....

now i've noticed that my armpits are kinda brown, like it hasnt been washed for like years or something, but i wash under there all the time, it even smells clean, and i have low BO. From what ive can remeber its always been like that.. or since puberty any way.

Is it like a skin reaction or someting? it kinda matches my forearm colour. Im just a bit confused cause it looks kinda embarrising. When i look at other people, they are like, white and clean under there even if they're tanned..

Any suggestions or advice? Im 16 / male btw.