Male pattern hair loss is a chronic, progressive disorder characterized by temple and crown thinning, potentially leading to a bald scalp, and is common in Western populations.

“he quickly diagnosed me with male pattern hair loss which is this chronic progressive hair loss disorder that presents as temple thinning and then crown thinning and it progresses to a slick bald scalp and it is impossible to walk down a city block without noticing somebody with this condition it is so ubiquitous in the westernized population”