To prevent the recurrence of pituitary tumor: 1. Early detection of changes in the condition is necessary. If the pituitary tumor is relatively small at this time, most of them are in benign symptoms, and the corresponding treatment can be actively carried out, so that the pituitary tumor can be removed completely without residue during the surgery. 2. After the surgery, according to the specific pathological type, it is decided whether it is benign or malignant. If the pituitary tumor is benign, basically, no special treatment is needed afterwards, as long as the surgery is clean, there is usually very little recurrence. However, for malignant pituitary tumors, such as invasive pituitary tumors, the corresponding radiotherapy treatment is often required after surgery to reduce the probability of recurrence. The dose of radiotherapy should be decided according to the specific type of pituitary tumor. If complete remission is not achieved, surgery is required.