A Retrospective Analysis of Clinical and Dermoscopic Features of Male Patients with Androgenic Alopecia Before and After Treatment

The study retrospectively analyzed 576 male patients with androgenic alopecia (AGA) to assess clinical and dermoscopic features and treatment efficacy. Most patients were young to middle-aged with mild to moderate hair loss, and 61.3% had a family history of AGA. Dermoscopic examination revealed that 87.5% of AGA patients had more than 20% hair diameter diversity (HDD), a significant diagnostic criterion, compared to only 3.4% of normal controls. The combination of oral finasteride and topical 5% minoxidil showed a total effective rate of 75.2%, with effectiveness increasing with treatment duration, particularly after 3 months. Dermoscopy proved valuable for early diagnosis and treatment evaluation.