The cause of pituitary tumor formation in women is not well understood. Pituitary tumors are tumors that originate in the pituitary tissue and most pituitary tumors are benign. The causes of female pituitary tumor and male pituitary tumor are still not completely clear, which may be related to hypothalamic hormone disorder, gene mutation, family genetics, environmental factors, etc., and may also be related to exposure to chemical poisons and radiation. In daily life, we should try to avoid exposure to chemical poisons and radiation, quit smoking and drinking, maintain a good and stable mood, and also pay attention to physical exercise and avoid staying up late. At present, there is no clear method to prevent pituitary tumor, and the pituitary tumor considered by imaging examination needs to be combined with the size of the pituitary tumor, clinical manifestations of the patient, and hormone examination to make a comprehensive judgment. Patients with pituitary tumors should go to the hospital in time, and be actively treated under the guidance of the doctor, so as not to delay the condition and cause serious consequences.