Alopecia risk factors
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Risk Factors
Some women ages 30 - 60 may notice a thinning of the hair that affects the entire scalp. The hair loss may be heavier at first, and then gradually slow or stop. There is no known cause for this type of hair loss.
Both men and women tend to lose hair thickness and amount as they age. Baldness is not usually caused by a disease. It is related to aging, heredity, and changes in the hormone, testosterone. Inherited or "pattern baldness" affects many more men than women. About one-half of men begin to bald by the time they are 30 years old, and most are either bald or have a balding pattern by age 60.
Some of the specific risk factors for alopecia are as follows: