What are the common symptoms of lung cancer after it spreads? Many people are still struggling with the pain of lung cancer disease, because when patients suffer from lung cancer disease, they need to suffer a lot, so they need to pay more attention to lung cancer disease and actively treat lung cancer disease after it has spread, let’s learn together what are the common symptoms of lung cancer after it has spread! 1. Chest Pain – Spreading Chest Wall There are many lung cancer patients who will spread to our chest wall when lung cancer spreads, which may cause patients to experience chest pain. About 30% of tumors directly invade the pleura, rib cage and chest wall, which can cause degree of chest pain. When the poking tumor is located near the pleura, it produces irregular dull pain or vague pain, and the pain is aggravated when breathing and coughing. When the ribs and spine are invaded, there is pressure pain but not related to breathing and coughing. If the tumor compresses the intercostal nerve, the chest pain may involve its distribution area. 2.Difficulty in breathing–spreading trachea There are also organs that some patients will spread, which will affect the patient’s breathing and the occurrence of symptoms such as difficulty in breathing and decrease in lung capacity. The tumor compresses the large airway, which may lead to inspiratory dyspnea. In addition, in elderly patients with lung cancer, the function of respiratory muscle groups declines, alveolar ducts, alveolar sacs and alveoli expand, thus causing the patient’s lung volume to decrease, while the residual air volume and functional residual air volume increase accordingly. 3. Difficulty in swallowing – spreading esophagus If lung cancer spreads to our esophagus, it may cause patients to have difficulty in swallowing, which may be life-threatening if the situation is serious. Early signs and symptoms of lung cancer also include compression of esophagus causing difficulty in swallowing and even bronchoesophageal fistula, which can lead to lung infection and suffocation death if the compression of airway is serious. 4.Heartness of voice – compression symptoms Hoarseness of voice can occur when cancer directly compresses or metastasizes to the enlarged mediastinal lymph gland and compresses the laryngeal nerve (mostly seen on the left side).