Androgenic alopecia or male/female patterned hair loss is also known as hereditary hair loss.
Androgenic Alopecia in Men (Male patterned hair loss)
Men who have this type of hair loss are genetically predisposed to the androgen (hormone) effects that can occur with scalp hair follicles.
There are two types of scalp follicles: androgen sensitive follicles on the top of the scalp and androgen independent follicles on the sides and the back of the scalp. This is why in men, we typically see hair loss on the crown of the scalp, but not on the sides or back of the scalp.
Androgenic Alopecia in Women (Female patterned
Women who have this type of hair loss are genetically predisposed to the hormone effect that can occur with scalp hair follicles.
These women will typically have thinning of the hair on the top and crown of the scalp. This progression usually begins with widening of the central hair part, and the hairline along the forehead and temples remain unaffected.