The hair on the outside of my left leg has not grown at all in years, while the rest of the areas on my legs are plenty hairy . This lack of hair growth goes up the entire leg from my ankle all the way to my thigh, and not in patches or anything either. It's the entire side.
Basically it's almost as if there's a straight line between my normal hair and this stubble-like side that's drawn down the exact center of my left leg.
Could the way i sleep have anything to do with it? I'm 20 and I do most often sleep on my left side, but not all the time and I sleep in a lot of other different positions too.
Does anyone know the possible cause of this? What can I do to get it growing again?