模式性脱发是一种年龄相关性疾病。根据已有数据,30岁男性中约有30%患有该病。50岁及80岁男性的患病率分别升至50%及80%。[4]Stough D, Stenn K, Haber R, et al. Psychological effects, pathophysiology, and management of androgenic alopecia in men. Mayo Clin Proc. 2005;80:1316-1322.http://www.ncbi.nlm.nih.gov/pubmed/16212145?tool=bestpractice.com[5]Gan DC, Sinclair RD. Prevalence of male and female pattern hair loss in Maryborough. J Investig Dermatol Symp Proc. 2005;10:184-189.http://www.jidsponline.org/article/S0022-202X(15)52584-0/abstracthttp://www.ncbi.nlm.nih.gov/pubmed/16382660?tool=bestpractice.com[6]Rhodes T, Girman CJ, Savin RC, et al. Prevalence of male pattern hair loss in 18-49 year old men. Dermatol Surg.1998;24:1330-1332.http://www.ncbi.nlm.nih.gov/pubmed/9865198?tool=bestpractice.com模式性脱发的发病率在围绝经期女性中升高,在65岁以上女性中患病率约为70%。