Alopecia

Female pattern hair loss (FPHL) is a common, nonscarring hair-loss disorder. Prevalence of FPHL increases with age; 12% of females will have symptoms by age 29 years, 25% by age 50 years, and 41% to 50% at age 70 years and older. Risk factors include genetics and endocrinological diseases (e.g., polycystic ovarian syndrome, adrenal hyperplasia, ovarian or adrenal tumours).