Is it common for many female to have darker groin?

what is the effective way to whiten the dark groin?Is it common for many female to have darker groin?
its is not uncommon to have dark groins,after your groin nevers sees daylight.you would have to go out into the sun and spread eagle your legs to get a tan,ive just checked mine their dark,i dont think i have a problem though
its common and there is no reason in the world to lighten it, leave it alone, thats a very tender flesh and isnt meant to be messed with .
do females have a groin and where is it???