underarm question?

Question

i have a white thick straight line along both my underarms.. i dont know how i got it. the streak is completly straight and white. then the other parts of my arm is tan. its so -_-.. how do i make it go away and how the heck did i get it. thanks

Answer 1

Its the fold in the skin- tan lines per say or its a natural lighter part.
Very common in darker skin colors, they have them under arms, at wrist, ankle and hands/feet.

not to worry. nothing wrong.