Cold sweat can be a precursor to colds, autonomic dysfunction, hypoglycemia and other diseases. 1. Cold: when bacteria, viruses and other pathogenic microorganisms invade the human body, it will lead to the body to have a cold, and will cause fever symptoms, chills before the temperature rises, which can be accompanied by sweating. 2. Autonomic dysfunction: when the human body’s autonomic dysfunction, it will lead to abnormal secretion of sweat glands in the body, thus causing cold sweats, such as female menopause, hyperthyroidism and so on. 3. Hypoglycemia: exercise in the morning under the condition of hunger will lead to the occurrence of hypoglycemia, which will stimulate the body’s sympathetic nerve excitation, leading to increased secretion of sweat glands and cold sweat symptoms. In short, there are many situations that can cause cold sweat, it is recommended to go to the hospital in time for medical treatment.