When the body is hot but not feverish, you usually need to consider this problem from both Chinese medicine and Western medicine: First, from the Chinese medicine point of view, it belongs to hyperactive Yang fire, which is triggered by excessive liver fire or excessive heart fire. At this time, there is heat and blood and wind evil into the body, thus easy to infect inflammation, easy to fire, at this time the body temperature is not necessarily fever. Second, from the perspective of Western medicine, it belongs to the hypothalamus temperature nerve function regulation point dysfunction. For example, after a major blow and serious head injury and trauma, such as focal cerebral infarction and cerebral hemorrhage, acute traumatic brain injury, such symptoms can occur after the hypothalamus central heat-sensitive neuron temperature adjustment point is dysregulated. Thirdly, diseases with increased basal metabolic rate can also cause fever on the body but not fever. For example, hyperthyroidism and adrenocortical dysfunction can also cause such a problem. Fourth, the clinical manifestation of fever but not high body temperature can also occur in the pre-stroke period.