This quite commun disorder can be classified under various categories : either considering its origins and symptoms for example, but one of its most frequent forms is called androgenetic alopecia or common baldness. Progressive hair loss affects 25% of the male population with 20 years old. As regards the origins, genes and hormones are implicated in this hair disorder and heredity can play an important part in it.
Female alopecia is not as documented as male alopecia is, making it more difficult for women to get all the information and answers they need on the subject. However, it is quite common among women as 30% of the female population will actually suffer from some kind of hair loss during their lifetime.