Glioma, referred to as glioma, is a tumor that occurs in the neuroectoderm. There are two types of tumors occurring in the neuroectoderm: those formed by mesenchymal cells, called gliomas, and those formed by parenchymal cells, called neuronal tumors. Since these two types of tumors cannot be completely distinguished from each other in terms of pathogenesis and morphology, and since gliomas that originate from mesenchymal cells are much more common than neuronal tumors that originate from parenchymal cells, neuronal tumors are included in gliomas and are collectively referred to as gliomas. According to WHO classification, there are about 40 specific types of glioma, including astrocytic tumors, oligodendroglial tumors, oligodendroglial tumors, ventricular meningioma, glioblastoma, etc. We artificially divide them into 1-4 grades, generally speaking, grades 1 and 2 are low grade; grades 3 and 4 are high grade. The survival time and treatment modalities of low-grade and high-grade are different. Gliomas can grow in different parts of the body, and more than 40 types of gliomas can occur in different people, with different benign and malignant properties, so there are various symptoms. Here I will only talk about the common things. The more people there are, the more crowded the house will be, so what happens when a guest comes to the brain? The first is high cranial pressure, manifested as a persistent headache of crushing, swelling, etc.; mostly vomiting after the headache, especially jet vomiting like drinking too much; sudden loss of vision for a short period of time. Some patients will have seizures, either generalized grand mal seizures or localized convulsions such as finger and calf, which are caused by the lesion interfering with normal brain activity. Other focal manifestations may include impaired arm and leg movement, speech impairment, etc. depending on the location of the lesion.