Palpitation is a feeling of discomfort or panic of heart beating, which may be caused by physiological reasons or by pathological reasons such as cardiovascular diseases and systemic diseases. Some healthy people may experience palpitations after smoking, drinking strong tea, coffee, alcohol, emotional excitement or physical activity, which is a normal physiological phenomenon. Cardiovascular diseases, such as ventricular premature beats, sinus tachycardia and supraventricular tachycardia and other arrhythmic diseases may cause palpitations, chest tightness, dizziness and other discomforts. Hypertensive heart disease and coronary atherosclerotic heart disease can also cause chest pain and palpitations. Systemic diseases, such as anemia, can cause heart rate to increase, leading to palpitations; hyperthyroidism can lead to an increase in basal metabolism, accelerating the heart rate, which can also cause palpitations. If the patient has palpitations, it is recommended that the patient go to the hospital in time, follow the doctor’s instructions for examination and treatment after clarifying the cause of the disease.