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androgenetic alopecia (inherited hair loss)

androgenetic alopecia is a type of hair loss that is inherited from either or both the mother and the father. also known as male- or female-pattern hair loss, it is the most common cause of hair loss.

the condition occurs when the growth (anagen) phase of the hair growth cycle becomes shorter and shorter. a genetic sensitivity to androgens, a type of hormone, causes hair follicles—where hair growth begins—to sprout hairs that are thinner and shorter than normal. over time, the hair follicles no longer produce hair.

  • in men, hair loss occurs on the front hairline and forehead and on the top of the head. bald spots are noticeable.
  • in women, hair loss occurs as thinning of hair on the top of the head. women tend to keep their front hairline and do not generally develop bald spots.

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this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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