Blood in the sputum in the morning may be caused by the following diseases: 1. If the patient is a young person with symptoms such as low fever, fatigue, night sweats and wasting, clinical consideration is given to the possibility of pulmonary tuberculosis, and further improvement of chest X-ray, lung CT, sputum check for antacid bacilli, PPD test and other related examinations are needed. If the patient has a long history of smoking, coughing up blood in the morning, and has clinical manifestations such as chest pain and wasting, clinical consideration does not exclude pulmonary malignant tumor, further improvement of lung CT, tumor series examination, bronchoscopy and other related examinations are needed, and if the patient is diagnosed with pulmonary malignant tumor, surgery, radiotherapy, chemotherapy, target cell drug therapy, etc. are needed; 3. After the diagnosis of bronchiectasis, active anti-infection, promotion of sputum drainage and support of symptomatic treatment are needed.