1. Adolescent androgenic alopecia:
This occurs due to high levels of androgen hormones, including testosterones, which is produced by adrenal glands in females. The condition occurs due to a genetic predisposition. The defective genes cause a surge in the production of androgens at puberty causing follicle damage. The increased level of hormones impact the hair-growing capability of the hair follicle, thus eventually causing hair loss.