Sudden body heat and sweating for a while is considered to be related to emotional factors, environmental factors, and menopausal syndromes. 1. Emotional factors: when the patient is emotionally excited, the body will suddenly heat up and sweat for a while, mainly related to the patient’s sympathetic nerve excitation. 2. Environmental factors: the body will change with the temperature of the surrounding environment, when the temperature suddenly increases, the body will suddenly heat and sweat, when the temperature drops after a while. 3. Menopause Syndrome: When female patients reach menopause, due to hormonal disorders in the body, the body may suddenly become hot and sweaty, and the symptoms will be better after a while. Sudden fever and sweating can be caused by other reasons, so you need to go to the hospital in time to find out the reasons.