Sudden pain in the heart for a few seconds is mainly considered the following diseases: first, angina attack of coronary heart disease, especially in patients with previous history of hypertension, diabetes mellitus, coronary heart disease, recurrent pain in the heart in the case of myocardial oxygen consumption such as activities, pay attention to the attack of angina pectoris, and need to check the electrocardiogram and ultrasound of the heart. Second, intercostal neuralgia, there is no previous risk factors for hypertension or a history of coronary artery disease, there is no clear trigger for the sudden onset of cardiac pain for a few seconds, it may be intercostal neuralgia. Third, reflux esophagitis, due to gastric reflux to the esophagus, the esophagus has an irritating effect and produces pain, accompanied by acid reflux and other digestive symptoms, examination of the upper gastrointestinal tract barium meal can help to clarify the diagnosis.