Morning cough with blood in sputum requires clarification of lower respiratory tract related diseases. 1. the presence of pulmonary tuberculosis, which has cough, sputum, hot flashes, night sweats, accompanied by blood in sputum, can be further diagnosed by chest CT as well as fiberoptic bronchoscopy. 2. attention to the presence of neoplastic diseases, long-term smokers, if there is blood in sputum in the morning, need to pay close attention to whether there are abnormal changes on the lungs and go to the hospital as soon as possible to give High-resolution CT of the chest and, if necessary, fiberoptic bronchoscopy can also be performed to see if there is a foreign body occupying the bronchial lumen and other causes.3. It is necessary to exclude upper respiratory tract diseases, such as nasopharyngeal cancer, tumors of the nasopharynx, oral gum bleeding, etc. These bleeding can also be brought out of the body by coughing action in the morning after precipitation at night and manifested as blood in sputum, which is actually caused by upper respiratory tract bleeding, and must be carefully identified to avoid misdiagnosis as lower respiratory tract disease.