Chest pain is not necessarily cancer. There are many causes of chest pain, including coronary heart disease, esophagitis, pulmonary artery embolism, thoracic chondritis, etc. Of course, lung cancer can also cause chest pain. If the chest pain is accompanied by sweating and suffocating sensation. Previous history of hypertension and diabetes may be due to coronary heart disease. And if the chest pain is related to eating and accompanied by vomiting acid, it may be caused by esophagitis or gastritis. Chest pain can also be costochondritis. This kind of costochondritis will have obvious pressure pain, while lung cancer causing chest pain is often accompanied by cough, blood in sputum, vague pain and other sensations. Of course, the specific type of chest pain can be clarified by electrocardiogram, lung CT, gastroscopy and other examinations.