Hair Loss in Men & Women NYC - (212) 644-9494 - New York, NY - Manhattan - New York City

In androgenetic alopecia, hormones related to testosterone (also called androgens) cause hair follicles to have a shorter than normal growth phase, resulting in hair shafts that are abnormally short and thin.  Genetics also appears to play a role in the risk for androgenetic alopecia in women, although other factors (some of which remain unknown) may also be important  All hair follicles are present at birth; throughout the lifetime each follicle grows and sheds single hairs in a repetitive cycle.  At the end of this time, growth ceases and the follicle enters a resting phase.  After three to four months in the resting phase, the hair is shed and the next growth cycle begins.