The slenderness of the posterior cerebral artery may be caused by congenital factors, arteriosclerosis, etc. It is necessary to pay attention to regular medical checkups and improve the lifestyle. 1. Regular medical checkups: If the patient has congenital slenderness of the posterior cerebral arteries, treatment is usually not needed, but relevant medical checkups should be done on a regular basis to avoid cerebral atherosclerosis and cerebral vascular stenosis. 2. Medication: If the posterior cerebral artery is thin due to atherosclerosis, aspirin, atorvastatin and other medications can be used under the guidance of the doctor to promote plaque regression and reduce the degree of narrowing of blood vessels. 3. Improve the lifestyle: patients with congenital slenderness of the posterior cerebral artery, usually need to pay attention to not staying up late, more rest, maintain a stable mood, do not be too anxious. If the patient’s posterior cerebral artery is slender, caused by atherosclerosis, usually need to pay attention to quit smoking and alcohol, light diet, do not eat too greasy food, moderate exercise. Patients with cerebral arterial fibrillation, usually need to pay attention to if once the discomfort occurs, we should promptly go to the hospital, clear cause, under the guidance of the doctor standardized treatment.