There are many reasons for sweating in the middle of the night: first, sweating in the middle of the night may be due to the high temperature at night, or cover too much quilt resulting in capillary expansion, resulting in sweat glands to secrete sweat to dissipate heat, which is a normal physiological phenomenon. Secondly, sweating in the middle of the night may be due to deficiency of Qi and blood, resulting in night sweats, which usually requires the use of Chinese medicine to regulate. In addition, excessive sweating in the middle of the night may also be caused by plant nerve dysfunction, which usually requires the use of vitamin B for regulation. Finally, we cannot rule out diseases that cause excessive sweating in the middle of the night, such as diabetes and hyperthyroidism, which can lead to hyperfunction of the sweat glands and thus cause sweating. You need to go to the hospital to check the primary cause and take appropriate measures to treat it according to the primary cause. The cause of midnight sweating usually needs to be determined based on a specific examination, and because pathological causes can bring about adverse effects, it is necessary to go for timely examination and treatment to avoid worsening and harming the body.