dermatologic disorders
Alopecia
Key Points
Androgenetic alopecia (male-pattern and female-pattern hair loss) is the most common type of hair loss. Concomitant virilization in women or scarring hair loss should prompt a thorough evaluation for an underlying disorder. Microscopic hair examination or scalp biopsy may be required for definitive diagnosis. Treatments includefinasterideordutasteridefor male-pattern hair loss, oral contraceptives orspironolactonefor female-pattern hair loss, and sometimes scalp injections with platelet-rich plasma, follicle transplant, or other surgical procedures. 