Pituitary tumors refer to a type of benign tumor that occurs at the site of the pituitary fossa. Generally, they grow relatively slowly. In the early stages of the disease, there are usually no obvious symptoms or signs. Some patients may occasionally feel mild headaches or dizziness, which most can tolerate. As the size of the pituitary tumor gradually increases, it often affects the surrounding critical tissues, nerves, and organs, primarily impacting pituitary function, thereby leading to pituitary hypofunction. This affects the secretion of endocrine hormones in the body, causing abnormal secretion of endocrine hormones, and resulting in a series of symptoms and signs. For example, male patients may experience abnormalities in the secretion of male hormones, leading to difficulties with erection, while female patients are likely to experience menstrual disorders and irregular menstruation.