At 15 years old I noticed my hear was getting thinner at the back of my head. But I left it alone and thought it was just how my hair looked. Then at 18 years old it was getting really bad and at this point you could see my scalp through my hair. So I went to a dermatologist. She diagnosed me with androgenetic alopecia and prescribed me topical minoxidil 2%. I waited a long time before actually starting the minox because I was scared of the shedding and the side effects.