Pituitary adenomas are benign tumors that occur in the anterior pituitary gland and are classified into non-functional pituitary adenomas and functional pituitary adenomas according to whether they have endocrine function. Among the functional pituitary adenomas, prolactinomas account for a large proportion, usually 50% of pituitary tumors, with clinical manifestations such as amenorrhea and lactation in women, hypogonadism in men, and significantly elevated serum prolactin levels in plasma. Prolactinomatous pituitary tumors are clinically treated with oral medication, which is more effective, and can be treated with oral bromocriptine. After a period of treatment, patients can show shrinkage of tumor and decrease of endocrine indexes. After long-term administration of bromocriptine, some patients can show clinical cure in terms of MRI and endocrine manifestation, which shows shrinkage of tumor and normalization of endocrine indexes. If oral bromocriptine is ineffective or if bleeding of the tumor occurs, and if the tumor is relatively large, surgical treatment can be performed, and the tumor can be removed by nasal endoscopy or microscopy. The life expectancy of patients with pituitary tumors is related to the specific situation and the treatment measures taken, and cannot be generalized. It is generally accepted in the medical community that pituitary tumors are generally benign, slow-growing and not cancerous. If a pituitary tumor is present, it may cause headache, abnormal hormone secretion, vision loss, etc. Women may suffer from breast overflow and menstrual disorders; men may suffer from impotence and infertility. Therefore, pituitary tumors should be treated actively. After standard treatment, most patients can live with tumors for decades and their life expectancy is basically not affected. However, if the pituitary tumor grows without active treatment, the tumor may compress the surrounding tissues, such as the optic nerve, which may lead to blindness in both eyes in serious cases. In addition, sudden bleeding and infarction of the tumor can occur in some patients, causing pituitary stroke, which can be life-threatening if not treated in time, and should be treated by the neurosurgery department of the hospital in time.