This phenomenon recognizes various endogenous or exogenous causes, but generally depends on an acute lesion of the hair follicles, which results in the sudden loss of structurally damaged hair. The diagnosis of anagen effluvium can be confirmed through some hair tests, such as the pull test. and the trichogram. Upon physical examination, there is a diffuse thinning of the hair up to complete baldness. Hair in anagen effluvium is typically dystrophic under the microscope or breaks in the scalp.
of the matrix, which reproduce intensively and give rise to the various structures of the hair.Anagen lasts on average 2-4 years in men and 3-6 years in women; with the passing of the years, however, this period decreases and with it also the maximum length that can be reached by the hair. The anagen is shorter in some areas of the scalp and is mainly regulated by genetic factors.
