If the heart jumps occasionally and suddenly, this is highly considered to be the occurrence of premature heart beats, which may be either supraventricular or ventricular. To further clarify the type of premature beats or the presence of premature beats, patients are advised to have an ambulatory electrocardiogram, as this is relatively helpful in detecting premature beats. If it is a general ECG, it only represents the presence or absence of premature contractions at this moment in time and is difficult to evaluate systematically. In addition, it is important to identify the cause or causes of this phenomenon. Some patients may have premature contractions due to exertion, staying up late, drinking strong tea or coffee. Other patients may suffer from ionic disorders, anemia, hyperthyroidism or hypothyroidism, which may also lead to premature contractions. Some patients may have heart disease, such as cardiomyopathy or congenital heart disease, which may also lead to premature beats.