一、对象:年龄≥50岁,不分男女,发现有秃顶情况者即为本组调查对象,共查得125例秃顶,全部为市区两个工厂内的在职或离、退休干部及工人(未含家属)。二、方法:采取到老龄俱乐部集中调查和平时门诊随见随记或个别查询等方式,用统一表格填写。内容包括头皮疾病及家族史等。三、标准:秃顶分两种情况:一种是顶部头发全部脱落,头皮油光发亮者,此种较少。 First, the object: age ≥ 50 years old, regardless of gender, who found the bald situation is the object of this group were investigated a total of 125 cases of balding, all for the urban area of ​​the two in-service or retired cadres and workers No family members). Second, methods: to focus on the investigation of elderly clubs and outpatient clinics usually follow the record or individual inquiries, etc., using a unified form. Including scalp disease and family history. Third, the standard: Bald is divided into two situations: one is the top of the hair all off, shiny scalp shiny, such less.