If the heart suddenly jerks sometimes, this situation is considered to be a possible occurrence of arrhythmia, such as atrial prophase contraction, ventricular prophase contraction, some patients are more sensitive to premature beats, they will be conscious of a sudden jerk, in fact, it may be just the occurrence of premature beats. It is also possible that some patients with disorders in the regulation of vegetative nerve function or cardiac neurosis may also experience this discomfort from time to time. It is recommended that if patients want to further clarify the diagnosis, it is best to first have an ambulatory electrocardiogram, which helps to document whether myocardial ischemia or arrhythmia is present when the patient is consciously experiencing sudden heart twitches. If the overall 24-hour ambulatory ECG, the patient does not show any abnormal performance, or only occasional premature beats, it is highly considered that this discomfort is caused by the presence of mental and psychological factors in the patient.