If the patient is a young adult and coughs up blood and the lung CT indicates tuberculosis lesions, the possibility of tuberculosis should be considered. Second, lung tumor, the patient is an elderly person with coughing blood symptoms and lung CT suggests lung shadow, consider the possibility of lung tumor, further improve the tumor series, bronchoscopy, lung biopsy and other related examinations, confirm the diagnosis of lung malignant tumor can consider surgery, with radiotherapy, chemotherapy and other related treatments.