Sweating of the hair at night in a girl’s sleep is classified as limited hyperhidrosis. Usually, hyperhidrosis is a localized sweating condition in the body, which tends to occur in the neck, hands and palms of men, and in the forehead, occiput and hair of women. There are two main types of causes: Chinese medicine and Western medicine. From the Chinese medicine point of view, women’s hyperhidrosis is usually due to deficiency, often due to blood deficiency, with kidney blood deficiency, spleen blood deficiency and heart blood deficiency as the main causes. From the perspective of Western medicine, women’s hair sweating at night, 1, diabetes hypoglycemia, especially in the early hours of the morning hypoglycemia will lead to sweating is particularly obvious. 2, hyperthyroidism, but also in the night time hair sweating. 3, rare endocrine diseases, such as adrenal pheochromocytoma, etc., but also in the evening easy to sweat mainly. 4, endocrine disorders in the female in the menopause, ovarian premature failure, but also in the evening easy to sweat. 5, women in the menopausal endocrine disorders, premature failure, but also in the evening easy to sweat. 6, women’s hair sweat at night, and also in the night, but also in the night. to sleep at night hair easy to sweat mainly.