How different is the Female Balding Pattern from the Male Form?

It is a known fact that women lose their hair around their entire scalp whereas the male balding pattern is confined to the top and the front of the scalp. This makes women difficult patients for hair transplantation because you never know which hair follicles are going to be resistant to further miniaturization and, therefore, which follicles to choose so that they would survive long enough after the transplantation. Scientists have found out recently that there is a significant difference between the way female hair follicles are affected by miniaturization versus men's. When men’s hair follicles are affected by miniaturization induced by the harmful effects of the dihydrotestosterone (DHT) this miniaturization affects all hairs in the follicle and they eventually all die. However, DHT in males is not known to affect the follicles on the sides and at the back of their head.

The balding pattern in women is quite different. Although DHT also happens to be the main cause of baldness in women it affects their hair follicles differently. It causes the miniaturization selectively so that only one or two hairs within the follicle will be affected and this process, though being more visible at the top of the scalp than at the back, is not limited to this area. So, in women DHT causes the miniaturization of hairs in all follicles around the scalp but only a few follicles will die altogether. In the most hair follicles at least one hair will survive unaffected, which gives women the typical diffuse balding pattern. It can be concluded that in women there is a certain hierarchy of hair miniaturization within the hair follicle, causing a different balding pattern.