According to the results of multiple logistic regression, the risk factors of seborrhoeic dermatoses are age, dysfunction of enteron, summer, spicy and fried food, inheritance or life habit and androgenlevel.

• 据多元logistic回归分析得出年龄、消化道功能紊乱，夏季、喜欢吃辛辣的食物、喜欢吃油炸的食物、直系亲属中有痤疮患者及乳晕周围长有较长的体毛为脂溢性皮肤病的危险因素。