If the number of premature beats per minute is more than 6, they are called frequent. If it is episodic, i.e., less than 6 premature beats per minute, it is likely to be caused by insufficient rest, excessive alcohol consumption, etc., and does not have particularly obvious clinical significance. In addition, it may also be due to disease, such as hyperthyroidism due to hypermetabolic state, causing increased myocardial oxygen consumption, myocardial ischemia, hypoxia phenomenon. This causes arrhythmia and premature beats. In addition to the above, when there is anemia or ionic disorders, coronary artery disease, cardiomyopathy, etc. may also occur in the case of frequent premature beats. It is recommended that a 24-hour ambulatory electrocardiogram (ECG) be performed to help better define the number of premature beats in a 24-hour period when the patient is experiencing discomfort and what type of premature beats are occurring. This is a very important guideline for further treatment planning.