There is uncertainty about how long atrial fibrillation can last. If the patient does not have obvious cardiac insufficiency, does not have blood clots in the atria, takes medication in a standardized way, and does not have other underlying diseases, the survival time is not different from the natural life expectancy of a normal human being; on the contrary, it may result in a different reduction of the survival time, but there is no specific statistical data. 1. Does not affect life expectancy: some patients with atrial fibrillation do not have changes in heart structure and do not have symptoms of cardiac insufficiency; no thrombus is formed in the atria, and no stroke or thromboembolism occurs; there is no comorbidity with other underlying diseases such as hypertension, coronary artery disease, diabetes mellitus, etc., and life expectancy may not be affected by standardized medications, such as warfarin, dabigatran etexilate, metoprolol, bisoprolol, and digoxin, in compliance with doctor’s instructions, and the survival time will not be different from that of normal people. Survival time is not different from the natural life expectancy of normal people. 2. Affecting life expectancy: Some patients may have more serious conditions, abnormal heart structure, cardiac insufficiency, stroke or thromboembolism, and other underlying diseases, without standardized treatment, which may lead to different degrees of reduction in the survival time, but there is no specific survival time statistics. Patients with atrial fibrillation are advised to take standardized medications for treatment under the guidance of a doctor and to improve a healthy lifestyle. If symptoms such as chest pain, dyspnea, dizziness and hemiparesis occur, they should seek medical attention in a timely manner and undergo targeted treatment.