Patient found a hair loss spot on the back of scalp 4 days ago.He did have lots of stress and emotion change in the past 3 months.He could not sleep well and enough for long time.He has to take the zolpidem tablet for the better sleep for a while.Mother: vitiligo (+).Examination & Findings 检查 & 发现A oval hair loss patch (3.2x2cm) with less light brown and thin hairs on the occipital area of the scalp.Assessment & Plan 评估 & 计划Explanation for the skin condition and treatment method.Topical medication treatment as directed.Follow up as needed.