Patients with left-sided embryonic posterior cerebral artery may not need to undergo targeted treatment if there are no obvious clinical symptoms, but need to be treated if symptoms of insufficient cerebral blood supply, such as dizziness and headache, occur. 1. Symptoms: need to receive treatment. Embryonic posterior cerebral artery is caused by the patient’s own developmental reasons, this type of cerebral vascular developmental abnormality may lead to cerebral blood supply insufficiency, cerebral infarction and other diseases, when the patient has dizziness, headache, somatosensory-motor function abnormalities and other symptoms, it is necessary to receive medication to improve the cerebral circulation, or to carry out surgery to correct vascular deformity. 2. Asymptomatic: no treatment is needed. Although embryonic posterior cerebral artery is one of the factors of cerebral infarction, not all patients will have symptoms of cerebral ischemia and cerebral infarction. Asymptomatic patients may not need to receive targeted treatment for the time being, and they should pay attention to standardizing their daily life and controlling the level of blood pressure and blood lipids in their daily life. Patients with left-sided embryonic posterior cerebral artery need to decide whether to receive targeted treatment according to whether they have symptoms of cerebral ischemia. Seek medical attention if you feel unwell. Medications should be used under a doctor’s supervision.