Subarachnoid cysts are not a very serious matter, because many people have arachnoid cysts, only some people compress the brain tissue and produce obvious clinical symptoms. And some people do not produce obvious clinical symptoms, this is also an occupying nature of the lesion, and not like the tumor as the distinction between benign and malignant, and not like vascular disease, the distinction between hemorrhage and ischemia. Mainly with the continuous prolongation of time, compression and stimulation of the surrounding brain tissue and the production of symptoms, if the patient does not have any clinical symptoms, there is no need for treatment, but only through the appropriate means of observation for review can be. If the later with the prolongation of time, arachnoid cysts gradually compressed to the brain tissue, produce obvious clinical symptoms, can be removed through the corresponding surgery, the operation is also very simple, not complicated, generally very smooth, the success rate will be in 95%, subarachnoid cysts do not need to pay special attention to, there are corresponding methods of treatment.