A2 segment of the right anterior cerebral artery with a thin image may be vasospasm or stenosis, depending on the specific symptoms of the patient can choose conservative treatment or surgical treatment. 1. Conservative treatment: If it is vasospasm, conservative treatment can be chosen by taking anti-vasospasm drugs (such as nimodipine) and anti-platelet drugs (such as aspirin, etc.). In case of stenosis, when the degree of stenosis is less than 70% and there is no obvious clinical symptom, and the angiography shows that the blood vessels are well compensated, conservative treatment can be chosen, such as taking statin lipid-lowering drugs. 2. Surgical treatment: when the degree of stenosis of A2 section of right anterior cerebral artery is more than 70%, or obvious clinical symptoms have appeared, such as limb weakness, speech difficulties, etc., surgical treatment is needed, usually choose intracranial artery stenting to maintain the normal perfusion of cerebral blood flow, and the patients need to take antiplatelet drugs for a long period of time after the operation. Cerebral vasospasm or cerebral vascular stenosis found must be treated under the guidance of a professional doctor, do not self-medication to avoid danger.