Fever ten days after pituitary tumor surgery may be caused by intracranial infection, central hyperthermia, lung infection and so on, which need to be treated with medication, surgery, physiotherapy and so on according to the cause. 1. Intracranial infection: if patients do not do a good job of aseptic operation when they undergo pituitary tumor surgery, intracranial retrograde infection may be caused in the process of surgery. It is suggested that patients with intracranial bacterial infection can use antibiotics such as ceftriaxone sodium as prescribed by doctor. If the patient has an intracranial viral infection, antiviral drugs such as ganciclovir and acyclovir should be prescribed. If the patient has a high fever, antipyretic medications such as ibuprofen or acetaminophen may be used under the direction of a physician, as well as physical hypothermia. For patients with brain abscesses, puncture and drainage or continuous catheterization are needed. 2. Central hyperthermia: If central hyperthermia leads to fever ten days after pituitary tumor surgery, the body temperature can be lowered by physical cooling such as warm water bath and ice packs. Fever-reducing medicines are less effective in treatment, but can still be used. 3. Lung infection: general anesthesia is needed during the surgery of pituitary tumor patients, if the patients are anesthetized with general anesthesia, it may induce lung infection, so the patients will have fever ten days after surgery. If the lung infection caused by bacterial infection need to follow the medical advice with penicillin, ceftriaxone and other antibiotics. If the lung infection is caused by influenza virus infection, adamantamine, amantadine and other antiviral drugs can be used as prescribed by the doctor. If the patient pituitary tumor ten days after surgery fever, need to consult a doctor in time, identify the cause of the disease and follow the doctor’s advice active treatment.