Whether right parietal subcranial meningioma is serious or not needs to be judged according to the size of the tumor. When the tumor is small and does not compress the nerves, it is usually not serious; if the tumor is large and compresses the nerves, it may cause sensory impairment, which is relatively more serious. 1. Most of the meningiomas under the skull plate at the top of the right side belong to benign lesions, and when the tumor is small and does not press on the nerves, it can be completely removed by surgery, which usually does not cause obvious symptoms, and the prognosis of the patients is usually good, and the chance of recurrence is relatively low. 2. If the tumor is large in size and compresses the nerve, it may cause sensory dysfunction leading to contralateral deep sensation, superficial sensation and cortical sensory disorder, and it is necessary to avoid the damage of the compressed nerve during surgical resection, and it is relatively more complicated to separate it at this time. 3. The unclear boundary during surgical resection of the tumor may damage the compressed nerve tissue, which may cause different degrees of surgical sequelae. Therefore, it is relatively more serious when the tumor is large. The severity of right parietal subcranial meningioma may also be related to the patient’s condition, so it is recommended to consult a doctor in time and follow the doctor’s instructions.