Sweating in the middle of the night may be related to environmental influences, emotional influences and disease influences. 1. Environmental influences: too high indoor temperature or too thick bedding during sleep can cause men to sweat in the middle of the night. 2. Emotional influence: men who are nervous and anxious at night will also affect the nervous system and circulatory system, which will lead to sweating in the middle of the night. 3. Disease effects: such as hyperthyroidism and other consumptive diseases, will lead to the body in a high metabolic state, can also lead to men to appear in the middle of the night sweating symptoms. Sweating in the middle of the night, the cause is more complex; if you can exclude the influence of physiological factors, you should seek medical examination as soon as possible, after diagnosis, under the guidance of the doctor for treatment.