Calf sweating at night is mainly related to autonomic dysfunction, excessive fatigue, malnutrition or spinal cord injury, and hot weather. 1. Autonomic nerve dysfunction: men with autonomic nerve dysfunction can affect the secretion of sweat glands, so it is easy to have sweaty calves at night. 2. Excessive fatigue: men who are overly tired during the day, such as heavy labor or strenuous exercise, frequent contraction of the leg muscles, may produce calf sweating at night during sleep. 3. Malnutrition: If the nutritional intake of men is insufficient, it is easy to produce the phenomenon of malnutrition, which leads to neurological disorders and the appearance of calf sweating at night. 4. Spinal cord injury: for patients with spinal cord injury, paraplegia may occur, motor and sensory dysfunction of the lower limbs, resulting in the symptoms of night sweats in the calves. 5. Hot weather: If the temperature of the room is high and the weather is hot, it is easy to produce the phenomenon of sweating, such as sweating in the calves and other parts of the body. If the phenomenon of sleeping calf sweating occurs frequently, you can first check the cause of the disease, and standardized treatment under the guidance of the doctor.