The survival rate of brain tumors must be analyzed according to the specific condition at the time. The nature of the brain tumor and the location of its growth will determine the survival rate. Generally speaking, for relatively simple benign tumors that grow close to the convex surface of the brain or do not seriously invade the surrounding tissues, such as meningiomas on the convex surface or nerve sheath tumors, as long as the surgery goes very well and there are no postoperative complications, the survival rate of such tumors basically reaches more than 95%. However, if the tumor is malignant, such as glioma or chordoma, and invades the normal brain tissue, the extent of the tumor is large and even produces bone destruction. Then the survival rate is not high, even about 10%. Especially for malignant glioma, the survival rate is even lower, because malignant glioma will have certain problems and even die within 5 years.