for girls: armpit stain?

[figwit]

I've been wondering this for awhile...
I have brown hair, and when I shave my armpits in the shower, the hair is gone but there's still a stain-like mark there, almost green in color.
Now movie stars never have that problem, they lift their arms and you see nothing but normal colored skin... do they bleach it? or have surgery? or is there a tip that I dont know of to keep that nasty looking dark away?

[B00]

Waxing?

[bitchyruskie]

They bleach the hair or wax it off.I have naturally blonde hair so do not have a problemand some celebrities do have the blue colour under their arms.Waxing gets rid of that.