Male pattern baldness, also known as androgenetic alopecia (medical term), is a common genetically inherited disorder which causes a characteristic pattern of hair loss in men which mainly affects the hairs on the front and top of the scalp.
What causes male pattern baldness?
When testosterone gets metabolised in the body, some of it gets converted to another male sex hormone called dihydrotestosterone (DHT) as a byproduct. DHT is then transported in the blood and goes and binds to DHT receptors on the surface of hair follicles on the scalp, as well as other organs all over the body. The follicles of men who suffer from male pattern baldness are sensitive to DHT, and when DHT binds to the receptors of hair follicles, it causes the follicles to shrink and produce thinner hairs. After many repeated cycles, the hair follicles shrink so much that they stop producing any hairs.