I have a friend that is having a problem with her vagina, it smells ?

Vaginal infection: she could be affected by a vaginal infection and needs an examination by a gynecologist or her primary care doctor

Might be normal: As hormone levels rise during adolescence and into adulthood, our bodies produce substances which have odors to them. This is true of both men and women. Many of the odors are quite normal, although new to us! Other conditions, most notably infections, can cause odors as well. It would be a good idea for your friend to begin regular checkups with her family doctor or a gynecologist. Good health!

Infection is likely: A vaginal infection is a likely cause; A gynecological examination is needed to diagnose the problem and apply the proper treatment;