The size of a meningioma varies from person to person and there is generally no standardized criteria. Meningioma is a primary tumor, mostly benign. It grows slowly and often has no clinical symptoms in the early stage, making it difficult to be detected, often because it is accidentally discovered during head trauma when examining a cranial CT. Patients with meningiomas may show increased intracranial pressure such as headache, dizziness, nausea and vomiting, and optic papillae edema, as well as focal symptoms such as common seizures. Although meningioma is mostly a kind of benign tumor, it also needs to be taken seriously, and found meningioma can be treated by surgical resection, and sent to pathological biopsy after surgery to clarify the nature of the tumor, and radiotherapy and chemotherapy can be carried out after surgery if necessary. Patients who find meningioma are advised to seek medical treatment in time, and must not be negligent to avoid delaying the condition.