Patients with a left temporal pole arachnoid cyst are usually able to take the drug nitroglycerin. Arachnoid cysts are congenital disorders that do not lead to serious disorders when they are small in size, and do not have a significant impact on the treatment of the patient’s other systemic disorders. If the patient suffers from heart system and other diseases, need to take nitroglycerin, not because of arachnoid cyst disease is limited, can use nitroglycerin, but need to be under the guidance of a professional doctor for oral treatment, and be sure to grasp the amount of nitroglycerin and the indications for the use of nitroglycerin. If the patient ate nitroglycerin, the original symptoms of the disease did not ease, or still in the increase in the importance of timely to the hospital for professional treatment, so as not to delay the condition.