If the patient is self-conscious of the soreness in the heart area, the specific causes are as follows: firstly, cardiogenic diseases should be taken into consideration, such as coronary atherosclerotic heart disease, unstable angina pectoris, myocarditis, pericarditis, hypertrophic obstructive cardiomyopathy, dilated cardiomyopathy, and hypertensive heart disease, all of which will lead to soreness and pain in the anterior region of the heart due to insufficient blood supply from the coronary arteries. Secondly, for respiratory infections, such as pleurisy, large lung infections, and pneumothorax, the precordial region can also experience soreness and pain. Then, for digestive system diseases, such as acute gastroenteritis, reflux gastritis, reflux esophagitis, cholecystitis, and pancreatitis, which cause acid reflux, heartburn, and nausea, can also lead to clinical signs and symptoms of soreness in the precordial area. Finally, if the patient develops chest wall diseases, such as intercostal neuralgia, the symptoms of soreness in the precordial region can also occur.