Patients with brainstem hemorrhage who develop a high fever may have several possible causes. Firstly, it might be due to absorption heat, but in such cases, the body temperature generally does not exceed 38.5 degrees Celsius. If there is recurrent fever, accompanied by coughing, expectoration, yellow and sticky sputum that is difficult to expel, it is mostly considered likely to be a pulmonary infection, in which case the body temperature generally exceeds 38.5 degrees Celsius, and high fever occurs. Additionally, it is important to note that once fever occurs, antipyretic medications should be administered to the patient to help lower the body temperature. Physical methods such as using warm water or rubbing alcohol for baths can also be used to reduce the temperature.