A sudden sharp pain in the middle of the chest should be regarded as angina pectoris, pleurisy, myocardial infarction, chest aneurysm and other diseases. But you can’t judge a disease by a symptom alone, a sudden pain in the middle of the chest may also be physiological reasons, it is recommended to consult a doctor in time. 1. Angina pectoris: angina pectoris refers to the hidden pain caused by lack of oxygen and ischemia in the myocardial area. Typical symptoms include a vague feeling of pain and chest discomfort. 2. Pleurisy: Pleurisy refers to inflammation of the plasma membrane inside the chest cavity caused by infection, and the pleura is stimulated by inflammation and causes hidden pain. Typical symptoms include vague pain in the middle of the chest. 3. Myocardial infarction: Myocardial infarction refers to the blockage of coronary arteries and ischemia of the local tissues of the heart, and the patient usually manifests hidden pain and chest discomfort. 4. Thoracic aneurysm: Thoracic aneurysm is a symptom caused by the expansion of arteries, but this symptom does not belong to tumor growth. Typical symptoms include vague pain caused by pressure on the nerve in the middle of chest. Sudden pain in the middle of the chest is not necessarily a disease, but may be a result of strenuous exercise in daily life, accelerated cardiac conduction speed, insufficient blood supply, oxygen supply can also lead to sudden pain in the middle of the chest, generally appropriate rest, reduce the amount of exercise symptoms can be relieved soon. It is recommended that when the symptoms of a sudden burst of pain in the middle of the chest, to rule out physiological causes, to go to the hospital in time, to clarify the cause of the disease, under the guidance of the doctor for treatment.