Balding and Hair Loss
Epidemiology And Genetics
Genetic or hereditary hair loss does not discriminate between sexes or races. Approximately 40 million men or 2 out of 3 men in the United States have significant hair loss. About 25% have some form of balding by age 30, and 65% begin to bald by age 60. In women, the number affected by pattern-type hair loss is slightly less: about 30 million or 1 in 4. Thinning hair can occur anytime between age 25 to 45, but most commonly hair loss presents after age 40. Hair loss occurs in about 25% of pre-menopausal women and in 38% of post-menopausal women.