In most cases, the cause is a genetic condition called androgenic alopecia, which is when hair follicles shrink because of a loss of estrogen and/or increased sensitivity to testosterone. Unlike men, who tend to experience androgenic alopecia as receding hairlines, women generally get thinning at the temples and the tops of their heads.If it is genetic, once it starts, it usually gets worse, so it’s best to seek treatment earlier on when there’s more hair to save. Androgenic alopecia strikes some 25 percent of women in their 20s and 30s, and more than half of women over 45, when estrogen levels fall, he said.Other possible, though rarer, causes of hair loss include alopecia areata, an autoimmune disorder in which the body attacks the hair follicles, causing patchy round bald spots. It affects less than 1 percent of the population and typically appears in the teen or young adult years.So, see a good doctor and find out what is happening to you. As you can see from what I wrote, the causes are many and it requires a good doctor to find out what is happening to you.
