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The male pattern baldness (MPB) form of androgenetic alopecia (there is also a female pattern baldness) accounts for more than 95% of hair loss in men. By age 35, two-thirds of American men will have some degree of appreciable hair loss and by age 50 approximately 85% of men have significantly thinning hair. About 25% of men who suffer from male pattern baldness begin the painful process before they reach 21. See how to spot the signs of male pattern baldness.
Contrary to societal belief, most men who suffer from male pattern baldness are extremely unhappy with their situation and would do anything to change it. Hair loss affects every aspect of their life. It affects interpersonal relationships as well as their professional life. It is not uncommon for men to change their career paths because of hair loss. Read more about hair loss.