Gliomas are malignant tumors and relatively large in size over three centimeters are serious and should be treated promptly to avoid serious complications such as increased intracranial pressure. Glioma is the most common malignant tumor in the central nervous system, which has the characteristics of continuous growth, compression of brain tissue and infiltration of surrounding tissues. Glioma over 3cm is relatively large and serious, and it is very likely to invade and oppress the surrounding brain tissues causing hypoxia and ischemia of the surrounding brain tissues, resulting in cerebral edema, which induces increased intracranial pressure, and may also be complicated by cerebral herniation, deep vein thrombosis and other diseases. Patients with cerebral glioma more than 3cm need to consult the doctor in time, actively carry out regular surgery, radiotherapy or drug symptomatic treatment, and actively prevent complications to avoid delaying the condition.