Night sweats is a Chinese medical term for a condition characterized by abnormal sweating after going to sleep, and then stopping after waking up. The word “night sweat” means theft, and ancient doctors used the word “night sweat” to describe the disease, that is, whenever people fall asleep, or when they close their eyes and will fall asleep, sweat like a thief secretly leaks out. The kidney yin: deficiency is Yang, deficiency heat, Yin Qi empty, sleep is the Wei Qi into the Yin, the table is not protected, the muscle surface is not dense, the glory of the fire alone in the outside, steam heat, forcing the fluid to leak outside the sweat. Wake up, the gas is solid in the table, the Xuanfu closed and sweat stop yin. Chinese medicine believes that: the kidney is the main five fluids, into the heart for sweat. Due to indiscretion, overwork, loss of blood and sperm, or long-term illness, Yin deficiency, lack of kidney fluid, deficiency of internal fire, forcing the fluid to leak out, so hot flashes and night sweats, sleeplessness, dizziness and tinnitus, red tongue with little moss, thin pulse, etc. The “medical zong must read” cloud: “kidney yin failure can not internal camp and retreat, then internal injury and night sweats.” At this time, the treatment should be to nourish Yin and lower fire. The following diseases need to be ruled out hyperthyroidism due to excessive secretion of thyroxine and increased metabolic rate, manifested as increased neuroexcitability, sympathetic hyperexcitability can appear fear of heat, excessive sweating, there are also night sweats. The main cause of excessive sweating in diabetic patients is plant nerve dysfunction and sympathetic excitation, which leads to increased sweat secretion; secondly, the increased metabolic rate of blood sugar is also one of the causes of excessive sweating in diabetic patients. The sweating of tuberculosis is one of the symptoms of tuberculosis intoxication, which is due to the stimulation of the central nervous system by the toxins of tuberculosis bacteria and their metabolites, resulting in the dysfunction of the autonomic nervous system. Tumor night sweats are also one of the common symptoms of tumor patients. In addition, hypertension, menopausal syndrome, hypoglycemia, systemic lupus erythematosus, endocarditis and other diseases, as well as postoperative weakness, mental tension and psychological stress, may cause night sweats. However, most night sweats are caused by plant nerve dysfunction, and their pathogenesis is mainly due to abnormal excitation of sympathetic nerves. The common phenomenon of night sweats during menopause is explained by Western medicine as a result of endocrine and plant nerve dysfunction due to the onset of menopause. In Chinese medicine, it is explained as a result of Yin deficiency and internal heat, deficiency of Yang, and lack of consolidation of fluids. Therefore, the main treatment is to nourish Yin. Although night sweats are normal during menopause, they need to be treated if they seriously affect daily life.