In male pattern hair loss, thinning or balding begins at the temples and crown (vertex) and spreads to the occipital scalp. In contrast, female-pattern hair loss (FPHL) usually causes thinning in the frontal and parietal scalp.

To determine the specific sites where FPHL is most prevalent, four areas of each subject’s scalp were evaluated: the midscalp area, the frontal area, the occipital area, and the parietal area (point 7 cm above the left and right external auditory canals). Hair density was assessed in each of these areas. In normal subjects, hair density varied considerably among the different scalp regions. However, the midscalp and parietal areas consistently showed the lowest hair density, even in Ludwig III FPHL patients. 정수리 탈모치료

In FPHL subjects, midscalp, parietal, and occipital areas all demonstrated decreasing hair density with increasing Ludwig staging. 부산탈모병원 Moreover, the parietal area showed the largest decrease in hair density and non-vellus hair diameter compared to the other scalp regions, even in Ludwig III FPHL patients. The results indicate that the parietal region of the scalp is a particularly affected site in FPHL and may help identify a potential target for pharmacological or other modalities for hair loss treatment in women with FPHL. 2016 Society of Dermatology Surgeons.