In the last 3 years or so, I have followed a lot of patients with cerebral infarction. I have found a phenomenon that trust in doctors is a useful indicator of patient prognosis. I have many patients in my clinic who have been followed up for 1-2 years years and their conditions are relatively stable, and they come to the clinic every month for follow-up. The process of follow-up is a kind of trust and communication, so that patients understand what they should do. For example, patients with cerebral infarction should take long-term aspirin and atorvastatin calcium, fat adjustment, plaque stabilization, and antiplatelet therapy, and only a very good follow-up can ensure that patients do not stop taking their medication. The most extreme case is a patient with carotid artery stenosis, who also suffered from diabetes and hypertension. After being discharged from the hospital, he did not follow the medical advice to take medication, but instead took various health supplements, which led to carotid artery occlusion and hemiplegia after only 3 months. We hope that all patients can trust the hospital and doctors and work together for the same goal, health.