Epilepsy can be operated if the cause of the disease is not detected in the examination, and the conditions of the operation are as follows: 1. Many patients cannot detect the cause of the disease because the parameters of the magnetic resonance are not set correctly. After setting the parameters correctly, if the lesion can be revealed, surgery can be performed; 2. For MRI-negative cases, doctors can use symptomatic analysis, EEG, PET-CT and other modalities, combined with image post-processing technology, to be able to find the possible range of epileptogenic foci, which can be surgically treated through electrode implantation to further confirm the epileptogenic foci; 3. For those who fail to find out the cause of their epilepsy after systematic preoperative evaluation, palliative surgery to improve the quality of life.