Pituitary tumors are mostly benign. The tumors grow slowly, but due to their special location adjacent to the pituitary gland, when the size of the pituitary tumor increases to a certain extent, it will inevitably affect the pituitary, impairing its function and leading to pituitary dysfunction. This dysfunction manifests as endocrine hormonal imbalances, resulting in a series of symptoms and signs. Therefore, it is usually recommended to treat pituitary tumors surgically. Clinically, it is generally advised to choose the transnasal transsphenoidal approach for complete resection of the pituitary tumor.