I saw a dermatologist. H cut a piece from the top of the front of my head. I went with the belief that it was from aromasin. He told me if it was from that it would show "scars" like when chemo made the hair fall out or meds.. also it would have fallen out in clumps pretty quickly not over months. Glad I went though, the sooner you start any kind of treatment the more hair you retain (I hope) Hope this helps.