When fever occurs after minimally invasive brain hemorrhage surgery, the cause of the fever should be clarified first in order to make targeted treatment. The following causes are common: first, absorption fever, brain hemorrhage will produce absorption fever when it is absorbed, and the body temperature usually does not exceed 38.5℃. Check the blood inflammation indicators are generally not abnormal, and the white blood cell count is not significantly elevated, at this time, as long as the cooling symptomatic treatment can be. Generally choose ice or ice cap physical cooling, you can also use alcohol rubbing bath. Secondly, infection, more common lung infection, urinary tract infection, or skin infection, but also can not exclude the surgery led to cranial infection. In this case, there will be a significant increase in white blood cells in the blood picture and elevated inflammatory indicators, and antibiotics can be used appropriately. If necessary, culture should be done to clarify what kind of pathogenic bacteria and choose more sensitive antibiotics. Third, dehydration fever, patients with cerebral hemorrhage usually use dehydrating agents, such as mannitol and furosemide. If there is excessive dehydration and no timely rehydration, it will lead to dehydration fever. In this case, the fever can usually be relieved by giving rehydration.