Pituitary tumors usually do not grow very fast. Pituitary tumors are a relatively common benign tumor in the skull, and benign tumors usually do not grow very fast. Pituitary tumors can also be referred to as pituitary adenomas and can be categorized as non-functioning pituitary adenomas or functioning pituitary adenomas. Non-functioning pituitary adenomas are usually diagnosed with decreased vision or impaired visual field, which is detected by cranial MRI, and the vision or visual field is affected by the tumor compressing the optic nerve. Functional pituitary tumors have a variety of clinical manifestations. In addition to impaired vision and visual field, different symptoms may occur depending on the functional type of pituitary tumor. For example, for prolactin type pituitary tumor, men will have breast development symptoms, and women will have menopause and lactation. Currently, the treatment of pituitary tumors is mainly based on surgery. If pituitary tumors are found, it is recommended to go to the neurosurgery department in order to avoid delaying the condition.