Glioma is also known as glioblastoma, or glioma for short. Depending on the degree of differentiation of tumor cells, malignancy is generally classified into four grades, with the higher the grade, the higher the malignancy. The higher the grade, the more malignant it is. The degree of malignancy of glioma determines the speed of tumor growth, the early and late appearance of symptoms, the severity and prognosis. Glioma can grow in any part of the brain and the symptoms are different depending on the location of the tumor in the brain. Clinical manifestations of glioma: headache, nausea, vomiting, loss of vision, unresponsiveness, indifference, personality change, psychiatric symptoms, phantom smell and hearing, epilepsy, unexplained aphasia, numbness and weakness of limbs, hemiparesis, etc. Clinical manifestations of cerebellar glioma Uncoordinated movement of hands, feet or upper and lower limbs, unstable walking, tinnitus, vertigo, hearing loss, etc. Unknown etiology The etiology of glioma is still not very clear. Years of exploration and practice have proven that the preferred treatment for glioma is still surgery, and the earlier the surgery, the more thorough the treatment.