The chance of having a seizure after meningioma surgery is primarily related to the size of the meningioma and whether it is located in a functional area. It is around 30%. 1. Volume of meningioma: If the volume of meningioma is large, the surgical resection process may damage the normal surrounding brain nerve tissues, which may lead to abnormal neuron discharges in the brain inducing epilepsy. 2. The location of meningioma: if the location of meningioma is far away from the functional area when resecting the lesion, there is no damage to the brain tissues, the probability of epilepsy occurrence is very low, and even can reach zero, but the meningioma is located in the functional area, there may be epileptic seizures after the surgery. The chance of epilepsy after meningioma surgery is around 30%. In order to prevent epilepsy after surgery, attention is paid to the protection of brain tissues during the surgery, and even if epilepsy occurs after the surgery, usually epilepsy can gradually get better after reasonable treatment. Patients after meningioma surgery are recommended to consult the neurosurgery department of regular hospitals for review.