Whether a pituitary tumor grows back or does not recur after surgery is a case that must be analyzed on a case-by-case basis. There are several cases in which recurrence is unlikely. First of all, if the pituitary tumor is found for the first time and the growth is small, and the surrounding shape is relatively regular, without encroaching on the surrounding cranial nerves and blood vessels, and without producing very big clinical symptoms, basically such a tumor can be judged as benign, and is unlikely to recur after removal. However, in some cases, such as pituitary tumors that grow very large and are found for the second time, there are even very obvious clinical symptoms, such as lactation in men and menopause in women, and a series of other cases. In addition, if the pituitary tumor is treated surgically in an irregular hospital, there will be a lot of residual tissues in the surgery, and the pituitary tumor will still recur and grow again after the surgery.