Poststernal manifestation of tightness and discomfort, commonly caused by heart disease, arrhythmia, myocardial ischemia patients will have obvious chest tightness and shortness of breath, accompanied by panic, electrocardiography can confirm the diagnosis, according to the needs of the condition, should be given to improve the coronary artery blood supply of medicines, or control the heart rate of the drug. There are many triggering factors for heart disease, including fatigue, emotional fluctuations, alcohol consumption, overeating, etc., and regular ECG and ultrasound examinations should be conducted. In addition, some patients have reflux esophagitis, esophageal dilatation, or esophageal ulcers caused by digestive tract diseases, which manifests as burning pain behind the sternum, obvious abdominal distension after eating, and acid reflux as well as belching symptoms, which can be clearly diagnosed by esophagogastroscopy, and the main attention should be paid to the protection of gastrointestinal mucous membranes for the treatment.