Treatment of right temporal arachnoid cysts is divided into conservative and surgical treatment. Conservative treatment: If the arachnoid cyst is small and has no obvious symptoms of pressure on the brain, such as headache, positive neurological signs or epilepsy, such a cyst needs to be reviewed regularly and closely observed. Surgical treatment: Because the cyst is large, it has significant compression of brain tissue and produces corresponding symptoms, such as headache, impaired limb movement, and epilepsy. Such arachnoid cysts require surgical treatment. There are two methods of surgical treatment; one is to open the skull and perform a cystectomy, which opens the dirty wall layer of the cyst, removes part of the cyst wall, and communicates the arachnoid membrane of the brain with the cerebrospinal fluid inside the cyst. The second method is to perform an arachnoid cyst-abdominal shunt, in which a shunt tube is attached to the arachnoid cyst at one end and placed in the abdominal cavity at the other end, so that the cerebrospinal fluid from the arachnoid cyst flows into the abdominal cavity for circulation.