Glioma is the most common primary intracranial tumor in neurosurgery, accounting for 40%-60% of intracranial tumors. The clinical symptoms of glioma are mainly divided into two categories: 1. High cranial pressure symptoms caused by tumor occupancy, i.e., due to the continuous growth of tumor occupying the space in the cranial cavity, tumor blocking the cerebrospinal fluid circulation pathway causing fluid accumulation in the brain and/or cerebral edema. The obstruction of cerebrospinal fluid reabsorption can cause the increase of intracranial pressure. The normal cranial cavity volume is about 10% larger than the brain tissue. When the volume of brain tissue increases by 8%-10%, there may be no symptoms of cranial hypertension, but when the intracranial occupying lesion occupies more than 150mL volume, the corresponding symptoms of cranial hypertension may occur. The symptoms of increased intracranial pressure include headache, vomiting, optic nerve papilledema, and visual field changes. Among them, vomiting is different from the nausea and vomiting caused by ordinary eating, but a kind of jet vomiting. 2. The tumor invades different functional areas, resulting in different changes. Patients with extensive frontal lobe tumor invasion, especially in the invasion of corpus callosum to the contralateral hemisphere, show obvious mental disorders, including slow reaction, inattention, abnormal emotion, memory loss, disorientation and computational power. In addition to mental disorders, tumor invasion of the frontal lobe can also lead to motor and language disorders, of which language disorders typically manifest as motor aphasia, which is the so-called ability to understand what we say, but he cannot express himself clearly; temporal lobe lesions cause personality changes with concomitant memory impairment. The slow deterioration of personality is accompanied by episodic abnormalities. and occur suddenly or stop suddenly again. As in psychomotor epilepsy. Sudden onset of behavioral abnormalities suggestive of temporal lobe lesions. Patients may have a variety of prodromal symptoms related to temporal lobe function: vertigo, hallucinations or hallucinations, phantom smells, uncomfortable visceral sensations, uncontrollable deep breathing, and a sense that something terrible is about to happen. Gliomas in the occipital lobe cause visual field defects, and visual hallucinations such as indefinite flash color abnormalities suggest a possible lesion in this area. Patients with gliomas that occur in the parietal lobe may also have a number of presentations. If the tumor is located in the anterior parietal lobe, it may lead to focal sensory epilepsy and sensory abnormalities on the contralateral side of the patient; destructive lesions cause contralateral hemianesthesia; parietal lobule lesions may have inability to count, inability to read and naming disorders. 3. About 1/3 of patients can have epilepsy as the first or main symptom. The type of seizure is related to the location of the tumor. Frontal lobe is mostly grand mal seizures, central region and parietal lobe are mostly focal seizures, and temporal lobe tumor presents as psychomotor seizures.