Glioma has a serious impact on brain tissues. The destruction caused by the extrusion of the tumor on the surrounding nerve tissues is often sudden in onset and rapid in progression, with neurological dysfunction as the earliest symptom, and sometimes can cause hydrocephalus. On the other hand, it can be due to some factors secreted by glioma cells, such as vascular endothelial cell growth factor, thus opening the blood-brain barrier and transferring water molecules from the vascular lumen to the tissue interstitial space. Patients should not take it lightly and pay attention to the early symptoms of glioma. Increased intracranial pressure can produce optic papillar edema and cause secondary optic nerve atrophy and vision loss. If the tumor compresses the optic nerve, primary optic nerve atrophy will occur, which will also lead to vision loss. If the tumor compresses the optic nerve, it will lead to primary optic nerve atrophy and vision loss. Nausea and vomiting is caused by stimulation of the medullary vomiting center or vagus nerve, which may be jet-like without nausea first. In children, the headache is not significant due to cranial suture separation, and the vomiting is more prominent because of the posterior cranial fossa tumor. Dizziness and headache are mostly caused by the increase of intracranial pressure, mostly jumping pain and swelling pain, mostly in the frontotemporal or occipital area, and for tumors in the superficial hemisphere of one side of the brain, the headache can be mainly on the affected side. Epilepsy A part of tumor patients have epilepsy symptoms, and they can be early symptoms. The epilepsy starts in adulthood and is usually symptomatic, mostly due to brain tumor. The presence of brain tumor should be considered when the seizures are not easily controlled by drugs or have changed in nature. Tumors adjacent to the cortex are prone to epilepsy, while those deeper in are less common. Localized epilepsy has localization significance. Some tumors, especially those located in the frontal lobe, may gradually develop psychiatric symptoms, such as personality change, indifference, reduced speech and activities, inattention, memory loss, lack of concern for things, lack of knowledge of neatness, etc.