Walking fast and having chest discomfort is a symptom. This symptom is mostly seen in coronary atheromatous heart disease, which is also known as coronary heart disease and chest lesions such as pleural disease, and the specific situation should be analyzed. If the patient’s age is older, and also combined with hypertension and diabetes, in this case, walking fast with discomfort in the precordial area, at the same time, can be relieved after rest, most of them are considered to be coronary heart disease, which is medically known as coronary atheromatous heart disease. In this case, electrocardiogram, coronary angiography and coronary CT examination can be performed. Among them, coronary angiography is the gold standard; if the patient is younger, a young patient, and at the same time combined with walking fast the symptoms of discomfort in the precordial area, may be pleural disease, should go to the thoracic surgery department, perform chest X-ray, chest CT and other examinations, combined with medical history, most patients can be diagnosed.