Frequent chest pain requires attention to the following causes: a. Chest injury or chronic soft tissue strain, mostly seen in people with long-term strenuous activities or fitness. Intercostal neuralgia, caused by herpes zoster or chondromalacia, etc. stimulating the intercostal nerve. Pleural and pulmonary diseases, tuberculous pleurisy or infection in the thoracic cavity and tumors in the lung irritate the pleura causing chest pain, to confirm the diagnosis can be further clarified by CT of the lung. Fourth, cardiovascular disease, especially the left side of the chest and back pain patients should pay special attention to, such as coronary artery stenosis or blockage and other causes of myocardial ischemia, can cause angina symptoms, you can do electrocardiogram, cardiac ultrasound, cardiac enzymes, and even coronary angiography to further clarify.