As life pace becomes faster and working pressure gets bigger,incidence of alopecia areata(AA) also increases.The susceptible population presents a trend of getting younger and more diversified.

• 随着人们生活节奏的加快及就业和工作压力的增大,斑秃的发生率也在不断地增加,而且越来越呈现年轻化、多样化。