Patients with atrial fibrillation are generally not recommended to be hospitalized, but in case of first-episode atrial fibrillation, it is recommended that the cause be carefully investigated after hospitalization, whether it is due to hyperthyroidism or caused by heart disease or ageing, so first-episode atrial fibrillation is generally hospitalized. In addition, patients with stroke and heart failure also need to be hospitalized, so the hospitalization of patients with atrial fibrillation cannot be generalized. In patients with common paroxysmal atrial fibrillation, radiofrequency ablation can be considered after common treatment and if there is no thrombus on esophageal ultrasound. In patients with persistent atrial fibrillation or those who already have left ear thrombus, they may be hospitalized for a period of time after regular treatment such as anticoagulation and need to persist for a further period outside the hospital. If the effect is not good and requires a second hospitalization for ablation therapy, or if the patient has a high risk of thrombosis and does not want to take anticoagulants, left ear occlusion may be performed to prevent thrombosis from causing cerebral embolism. Because atrial fibrillation cerebral embolism has a poor prognosis, high mortality and recurrence rates, and is easily fatal and disabling. Therefore, patients with atrial fibrillation have different purposes of hospitalization, different types of atrial fibrillation, and different choice of treatment, and the duration of hospitalization will be different and cannot be generalized.