Low-grade glioma is also a kind of glioma, mainly refers to low-grade malignant glioma rather than benign glioma, pathologically it is astrocytoma, oligodendroglioma and oligodendrocyte astrocyte. 1. Low-grade glioma cannot be observed but needs active surgery Low-grade glioma grows at a constant rate, 4-8mm per year, and after growing for a period of time, usually 5-7, but it is not known exactly when, malignant transformation occurs, that is, interstitial transformation. After malignant transformation, the condition deteriorates rapidly and requires comprehensive treatment (surgery, radiotherapy, chemotherapy, etc.). The current survival of patients with low-grade glioma without surgery or partial excision is nearly 5.9 years, while the average survival after total excision is up to 12 years. 2. Low-grade glioma is not asymptomatic. Usually doctors say there are no symptoms mainly because there is no motor, speech, sensory and visual field impairment. After careful examination, it is found that 30-50% of many patients have cognitive dysfunction, such as memory, emotion, decision, judgment, working memory, etc. This also shows on the other hand that low-grade glioma cannot wait for observation and needs active treatment to alleviate the aggravation of symptoms; 3. Current surgery needs How is it done? The more the degree of resection of this glioma, the better the prognosis of the patient, but because of the long survival period of the patient, it is necessary to protect the patient’s function. Arousal surgery is an option to locate the cortical and subcortical structures of the patient in the arousal state, and the subcortical structures are more important, and the key is to remove the tumor to the maximum extent while preserving the function and protecting the subcortical structures. 4. For tumors that cannot be removed, observe follow-up or chemotherapy rather than radiotherapy. Because radiotherapy can usually only be received once in a person’s life, it is best to use it after the patient has become malignant, and radiotherapy can affect the patient’s cognitive function. Chemotherapy can be used, and at present, the side effects of chemotherapy are relatively low, and for some diffuse tumors, they can also be removed surgically after chemotherapy. Also observe that after a period of follow-up, the patient recovers after the first surgery with transient dysfunction, indicating that there is functional reconstruction of the brain, and we have the possibility to remove part of the lesion through another surgery to reduce the possibility of interstitial changes. 5. Two kinds of wrong views: (1) Some doctors say that his technique is very high, and if he removes the tumor exactly according to the boundary of the tumor, it will not damage the function, the key is that this tumor has no boundary, and this type of resection cannot be expanded to remove it, we need to remove it according to the functional boundary, not the anatomical boundary; (2) Some doctors say, I can remove this tumor from you, as long as you don’t want the function of your hand or the function of your speech. I can cure the disease completely. In fact, this disease is not curable at present. Don’t believe in miracle doctors, believe in science, you ask him back, can you be sure of the cure? We want the patient to have a higher quality of life during his lifetime, not a disabled person.