Sweating at the back of the body can be caused by physiological reasons such as warmth and heat stimulation, as well as pathologic reasons such as yin deficiency and fire (deficiency of yin essence in the body, resulting in hyperactive fire), which need to be treated and intervened with by adjusting the bedding, nourishing yin and clearing heat (nourishing the yin essence and removing the heat evils), and so on. 1. Physiological causes: Physiological causes such as high temperatures in hot days, thick blankets, drinking alcohol, and sleeping after eating a spicy diet can lead to sweating at the back of the body while sleeping. This kind of physiological sweating has no other physical discomfort, generally do not need to be treated. Pay attention to adjust the room temperature, adjust the diet, and reasonably reduce the quilt can be. 2. Yin deficiency and fire: If you often, or every day, have to sleep back sweat, even if the cover is light bedding or sweating, may belong to the night sweats (sleep sweating abnormally, wake up sweating stops), is the manifestation of Yin deficiency and fire. There may also be dry mouth and thirst, back pain, insomnia and nightmares, and other physical discomforts, you can follow the doctor’s instructions to take the traditional Chinese medicine six flavors of dihuang pill, Zhi Bai Di Huang Wan and so on. The adverse reactions and contraindications of the above drugs are not clear. If there is always sleeping back sweat, it is recommended to consult a doctor in time to identify the cause of the disease, symptomatic treatment, do not unauthorized use of drugs.