Symptoms before death of pituitary tumor patients are mostly caused by increased intracranial pressure due to the lack of effective treatment of patients’ condition, so the symptoms before death of patients are mainly the corresponding clinical manifestations brought about by increased intracranial pressure, which can be seen in the acute stage of increased blood pressure, slow pulse and irregular breathing, mainly caused by ischemia and hypoxia in the brainstem. With the further development of the disease, there will be a drop in blood pressure, respiratory arrest, pupil dilatation and other manifestations. Pituitary tumors require active treatment, and the prognosis of patients is likely to be good if they are treated actively. However, pituitary tumors have a certain recurrence rate, so for pituitary tumor patients, regular follow-up after surgery must be emphasized, so that recurrent lesions can be detected at an early stage and early medical intervention can be carried out.