Temporal pole arachnoid cyst is serious or not must be judged according to the actual situation, the vast majority is not a serious disease, to determine whether the arachnoid cyst pressure on the brain tissue is very important. Theoretically, an arachnoid cyst is just a lesion, and the biggest impact on the patient is the pressure on the brain tissue that produces symptoms, and does not differentiate between benign and malignant, but is in fact a mass of magical tissue structures, including the cerebrospinal fluid. It also depends on whether the clinical symptoms caused by arachnoid cysts are very serious and affect daily life, and gradually show aggravating development, if the aggravating development affects daily life, this is a serious problem that needs to be treated as soon as possible. If there is no clinical symptom and it is not serious, it can be followed up regularly, so the judgment is made according to the actual situation.