A pulse that stops after a few beats is commonly seen in premature beats, AV block, etc. If there are no other physical discomforts, the condition is not serious; if there are other physical discomforts, the condition is more serious. 1. Premature beats: also called preterm contractions, are heart beats that occur too early and can be followed by long intervals. As a result, the patient may experience panic and a feeling that the pulse stops after a few beats. If the condition is mild, there may be no other obvious discomfort; if this feeling of cardiac arrest occurs frequently, with weakness, dizziness and other symptoms, the condition is more serious, and may even induce angina pectoris, heart failure and so on. 2. Atrioventricular block: a condition in which the atrial impulse is delayed or cannot be conducted to the ventricle after the atrioventricular junction area is removed from the physiologic period of inactivity. Atrioventricular block can occur in adults and children, as well as in athletes. In this case, there may be no obvious physical discomfort and the condition is mild. In second-degree AV block or higher, there may be a noticeable pulse that stops after a few beats, as well as dizziness, weakness, fatigue, shortness of breath, and shortness of breath after activity. This condition can be dangerous and can trigger insufficient blood supply to the heart and brain, mental retardation and heart failure. Therefore, the pulse stops after a few beats, and you need to consult a doctor in time, follow the doctor’s instructions for examination and treatment, and follow the doctor’s instructions for regular rechecks.