The main causes of chest breathing pain are caused by pleurisy, pleural tumors, pneumothorax, hemothorax, hemopneumothorax, lung and bronchial diseases, and diseases of the ribs and costal cartilage. It is often aggravated by coughing or deep breathing, and is mostly accompanied by coughing and coughing up sputum. 1. Pleurisy, pleural tumor: inflammatory factor stimulation, tumor compression or invasion of wall pleural sensory nerve fibers cause pain. 2. Pneumothorax, hemothorax, hemopneumothorax: after gas and blood enter the pleural cavity, physical factors act on the wall pleura to appear chest pain. 3. Lung and bronchial diseases: such as primary lung cancer, pulmonary tuberculosis, etc. Tumor or tuberculosis inflammation invades the pleura, bronchial tubes and other tissues and organs, and chest pain may appear when coughing or deep inhalation. 4. Rib and rib cartilage diseases: rib fracture, rib cartilage inflammation, rib tumor, etc. Chest pain can appear when coughing and deep breathing, and there can be obvious local pressure pain. 5. Chest breathing pain may also be associated with deep inhalation movements, violent coughing movements and other lifestyles. If chest breathing pain with dyspnea and other corresponding symptoms continue to be unrelieved, you should consult a doctor in time, complete the relevant examinations, identify the cause of the disease, and standardize the treatment under the guidance of the doctor.