At present, there is no definitive conclusion on how pituitary tumors are formed and further developed. Clinically, it is mostly believed to be the result of a combination of congenital genetic factors and adverse environmental factors acquired later in life. For patients with pituitary tumors, they are often seen in some special familial genetic diseases. In the family medical history, a tendency for a higher accumulation of family members can be observed. Additionally, some pituitary tumor patients are also found in clear familial genetic endocrine diseases. Moreover, patients who are overworked, fatigued, under stress, and experience endocrine hormone disorders are also affected. Exposure to radioactive contamination and chemical carcinogens can also potentially lead to pituitary tumors.