Premature atrial beats, referred to as atrial premature beats, are ectopic beats of atrial origin that occur earlier than the basal heart rate. Premature beats can be classified as sinus, atrial, atrioventricular junctional, or ventricular, depending on the source of the abnormal beat. Ventricular premature beats are the most common, followed by atrial premature beats. Atrial premature contractions are common in patients with underlying heart disease and structural and functional abnormalities of the heart, and can also be seen in healthy people, mostly after emotional stress, anxiety or alcohol consumption. The frequency of premature contractions can be divided into episodic contractions with less than 5 beats/minute and frequent contractions with more than 6 beats/minute. Premature beats are usually characterized by symptoms such as panic, palpitations, and pause in the heartbeat, but there are many patients who do not experience any discomfort when they occur. In many patients, early beats and long intervals afterwards can be detected by auscultation of the heart. Because most arrhythmias have similar symptoms, the diagnosis of atrial premature beats must be made by electrocardiography or ambulatory electrocardiography. Occasional premature atrial beats are mostly harmless to health. Frequent premature atrial beats may affect the normal blood flow in the atria and lead to distant structural changes in the atria, but they can be treated under medical supervision and are mostly well controlled and not life-threatening. Atrial premature contractions are a type of premature contractions that can occur in heart patients and healthy people and are not directly life-threatening. In case of premature beats, an electrocardiogram should be performed in a hospital to determine the type of premature beats and to treat them under the guidance of a physician.