Cough with blood in the morning is most often seen in the following diseases: 1. pulmonary tuberculosis, patients with pulmonary tuberculosis can have cough with blood in the sputum, also accompanied by a large amount of coughing up blood, often combined with afternoon low fever, night sweats and other symptoms; 2. bronchiectasis, patients with bronchiectasis can also get up in the morning with cough with blood in the sputum, often accompanied by coughing up large amounts of pus sputum, with a history of recurrent episodes; 3. lung tumors, patients with lung tumors can have cough with blood in the sputum, also accompanied by chest pain, wasting and other symptoms; 4. Patients with lung tumors can have cough and blood in sputum, which can also be accompanied by chest pain and wasting; 4. Patients with lung infections can also have cough and a small amount of blood in sputum, often accompanied by chills and fever. In conclusion, if coughing and blood in sputum occurs in the morning, patients should go to the hospital for chest CT and other examinations to further clarify the cause.