Any kind of tumor that talks about survival must be judged specifically on a case-by-case basis, because the nature of the pathology of glioma is different for each person, and each person’s state of mind and physical condition is also different. Therefore, there are many factors involved in exactly how long you can live. WHO (World Health Organization) classification of central nervous system tumors classifies gliomas into grades I-IV, of which grades I and II are low-grade gliomas and grades III and IV are high-grade gliomas. For example, diffuse astrocytoma belongs to grade II glioma. Generally, the survival period of low-grade glioma represented by diffuse astrocytoma is longer. The 5-year survival rate for those with total resection of the tumor can reach 80%, but the 5-year survival rate for those with partial resection of the tumor or tumor biopsy is only 45%-50%. Moreover, partial resection of low-grade gliomas is associated with 1.4 times the risk of lesion recurrence and 4.9 times the risk of death compared with total resection. For mesenchymal glioma (grade III) and glioblastoma multiforme (grade IV), the median survival time (half-survival) is 2-3 years and 1 year, respectively. The 5-year survival rate of patients with mesenchymal glioma is basically no more than 50% after surgery plus radiotherapy, and the degree of surgical resection of the tumor directly affects the survival of patients, and even after partial resection of the tumor, the 5-year survival rate of patients with partial resection is only 16-25%; the 5-year survival rate of patients with polypoid glioma is only 45-25%; the 5-year survival rate of those with partial resection is only 45-25%. The 5-year survival rate of partially resected patients even after radiotherapy is only 16%-25%; Glioblastoma multiforme is the most common highly malignant glioma, and 95% of untreated patients have a survival period of no more than 3 months, and the 5-year survival rate after total tumor resection, radiotherapy, chemotherapy, and other comprehensive treatments is also less than 10%. In summary, the prognosis of glioma is influenced by the type of tumor, the degree of surgical resection, and the age of onset.