Why reoperate on patients with recurrent gliomas? For recurrent gliomas, reoperation to remove the tumor and reduce tumor volume and brain edema induced due to the tumor are essential elements of other adjuvant treatments. Reoperation can improve the patient’s neurological status, prolong survival, and improve the quality of life. Which types of recurrent glioma patients are suitable for reoperation? Comprehensive consideration is made based on the patient’s systemic condition, tumor nature and tumor location. Generally speaking, neurosurgeons mainly consider the following aspects: 1, patients are younger, in better general condition, and the survival quality score of Karnofsky tumor patients is more than 60; 2, the pathology report after the first surgery is non-highly malignant; 3, the recurrent tumor is located in the non-functional area; 4, the interval between the first occurrence and the recurrence is relatively long; 5, the first surgery resected more thoroughly; 6, the tumor has cystic degeneration. The first three of them are the most important. Among them, the first three conditions are the first consideration, and the last three are the reference conditions. Relatively benign gliomas such as ganglionic glioma, central neuroblastoma, hairy cell astrocytoma, subventricular giant cell astrocytoma, pleomorphic yellow astrocytoma, well-differentiated infiltrative astrocytoma and oligodendroglioma are especially suitable for re-surgical resection.