Second-degree type 1 AV block is not serious and does not require special treatment, with regular review of ECG or ambulatory ECG. Second-degree type 1 AV block can be seen in normal people or people with heart disease. Most people do not have clinical manifestations, while a few will have symptoms of panic. Most people have no clinical symptoms, and a small number of people will have symptoms of panic. Those with second-degree type 1 AV block who do not have a slow heart rate usually do not need medication. However, in a small number of patients with second-degree type 1 AV block, the function of the AV node further decreases, and second-degree type 2 AV block or third-degree AV block gradually appears, which is a serious situation and requires the installation of a pacemaker if necessary. An electrocardiogram (ECG) reveals second-degree type 1 AV block, which requires regular visits to the hospital for repeat ECG or ambulatory electrocardiograms, and active treatment of the primary cause of the disease.