The body is cold but also sweating and feeling hot is usually caused by the following four reasons. First, the initial stage of the cold, when the body is invaded by bacteria, viruses or pathogenic microorganisms, will produce the body’s immune response, the production of antigens, antibodies, at this time will make the body temperature drop, but when the body is invaded by bacteria and viruses, the body temperature of the central regulating point will move up, then there will be hot and cold, the body cool but feel sweaty, but also feverish symptoms. Second, as in the early stages of heat stroke, when the body loses too much fluid or sweats a lot, the body will quickly cool down, but the central body temperature adjustment point does not move down in time, it will feel feverish. Third, when the body, such as the cranium, suffers from severe trauma, traumatic blow, cerebral hemorrhage and sequelae of cerebral infarction, the sensitivity of central hypothalamic thermo-neurons is impaired, and the body will be consciously cool, sweat and feel hot. Fourthly, when the internal environment is disturbed and endocrine disorders are present, the above-mentioned situation of cool body, feeling sweaty and also feverish will also occur.