Premature ventricular contractions do not normally trigger atrial fibrillation, which can be induced by premature atrial contractions. Premature ventricular beats are extra contractions of the heart caused by the stimulation of abnormal pacing points within the ventricles. Since the ventricles are located below the AV node, abnormal ventricular beats are seldom retrograded through the AV node to the atria, and do not interfere with the electrical activity of the atria, premature ventricular beats seldom induce atrial fibrillation. Atrial fibrillation is an arrhythmia caused by disturbances in the electrical activity of the atria. Patients with atrial structural changes, such as rheumatic heart disease, hypertensive heart disease, etc., will cause the left atrium to increase in size, which can lead to abnormal electrical activity of the heart, and atrial fibrillation occurs in the atria, and part of the atrial fibrillation can be induced by atrial premature beats. Patients with atrial fibrillation should seek medical attention in a timely manner, pay attention to finding the cause, and treat atrial fibrillation under the guidance of a physician. Some patients also need anticoagulation to prevent the formation of arterial thrombosis.