If the pituitary tumor is completely removed intraoperatively, and if the tumor is also invisible on imaging and the blood endocrine hormones are normal after surgery, I can only say that there will be almost no recurrence in this way, but regular follow-up and review are still recommended. Pituitary tumors are endocrine tumors and there is still a possibility of recurrence after changes in the intra-organic environment, especially for patients with a history of double adrenaline surgery, long-term primary hypothyroidism or hypogonadism. It has also been reported in the literature that patients with these types of pituitary tumors have a higher probability of recurrence after surgery, which may be due to a long-term sustained loss of feedback regulation.