The normal body temperature for adults is between 36.3 and 37.2°C. Most body temperatures in this range are normal. The human body has a normal thermoregulatory function, and abnormal fluctuations in body temperature can occur when there is an abnormality in the body. It is important to note that both low and high body temperatures have adverse effects on the body. When abnormalities in body temperature occur, the patient should be seen by a hospital for a comprehensive systemic assessment and appropriate treatment. For example, in clinical practice, if the body temperature is elevated, the acute onset of the disease should be considered as a co-infection, and the corresponding examination and diagnosis should be made, and the corresponding treatment should be given to facilitate the normal recovery of the body.