Benign pulmonary nodules have no specific symptoms because the nodules are less than 3 cm in diameter. If a benign lung lesion grows to a certain size, it may also produce non-specific symptoms, the more common ones are coughing, coughing sputum, chest pain, chest tightness, and even shortness of breath, as well as other compression symptoms. If the mass is next to the nerve, if the laryngeal nerve and phrenic nerve are pressed, the voice may become hoarse. However, all these symptoms are non-specific symptoms, it is malignant tumor lesions in the lung or other more serious diseases that the lung symptoms will be more obvious. The most common symptom of lung cancer may be hemoptysis. If the symptom of hemoptysis occurs, you must go to hospital for regular treatment.