Back pain, chest tightness and breathlessness are mostly seen in heart diseases, lung diseases, pleural diseases, etc. It may also be a manifestation triggered by digestive tract diseases. It is recommended that patients go to a regular hospital for examination in time to clarify the cause early and deal with it accordingly to avoid life-threatening.1. Heart diseases: such as coronary heart disease, due to insufficient coronary artery blood supply or myocardial injury, patients can experience chest pain, chest tightness, and poor breathing. chest pain can be radiated to the back, especially the left scapula, so it can be manifested as difficulty in the back. Patients with simple coronary angina can take oral compound danshen granules, nitroglycerin tablets, patients with myocardial infarction need immediate thrombolytic therapy, such as oral warfarin sodium tablets, etc. Coronary CT shows vascular abnormalities, depending on the situation, coronary stent implantation or coronary artery bypass surgery is feasible; 2, lung disease: patients with chronic obstructive pulmonary disease, pneumonia, tuberculosis, lung tumors and other conditions, the disease can stimulate the lungs and implicate surrounding tissues, and symptoms such as difficulty in the back, chest tightness, breathlessness, coughing and coughing may be more pronounced, especially when the symptoms are aggravated. If such patients have inflammatory infections, they can be treated symptomatically with antibiotics such as cefradine capsules, and oxygen can be administered to improve lung ventilation. Patients with tuberculosis also need to use anti-tuberculosis drugs such as rifampin tablets, and lung tumors generally require surgical resection treatment, such as radical lung cancer surgery, etc.; 3, pleural diseases: such as the occurrence of pleurisy, pleural tuberculosis, etc., adhesions occur in the pleura, resulting in restricted expansion of the thoracic volume, which can lead to obstruction of lung ventilation and gas exchange, which in turn leads to insufficient oxygen supply to the body, which may result in chest tightness and poor breathing, and after the inflammation involves the peripheral nerves, which can The inflammation may involve the peripheral nerves and cause difficulty in the back. In this case, the patient has severe pain, can be performed chest CT examination to clarify, and then symptomatic treatment, such as the use of metronidazole injection, isoniazid tablets, etc., if necessary, chest puncture treatment; 4, digestive tract diseases: such as digestive tract perforation, part of the body’s digestive tract in the thoracic cavity, and the lesion perforation, digestive organ contents and inflammatory substances can penetrate into the thoracic cavity near or into the retroperitoneum, triggering Back pain and chest tightness and breathlessness. Patients mostly have fever and shock, and require aggressive surgical repair, such as gastroduodenal perforation suturing, which can relieve the disease. There are many other clinical causes of such symptoms, and the cause is usually not clear without professional examination, and the best treatment time may be delayed without active medical consultation, which may threaten the life of the patient.