Spitting up sputum that is black in the morning can be seen in people who have been smoking for a long time or in patients with infectious diseases of the respiratory system and hemoptysis. Therefore, if black sputum appears, you must go to the hospital for further diagnosis through lung CT and other examinations to clarify whether there are lesions in the lungs, as follows: 1. Infectious diseases of the respiratory system: often seen in patients who smoke with concurrent bacterial infections, which can be treated with anti-infective treatment, let’s say penicillin-like amoxicillin, amoxicillin clavulanate potassium, macrolide azithromycin, erythromycin, Cephalosporins such as cefadroxil, cefuroxime, cefdinir and so on. If the adult is older than 18 years old, quinolone antibiotics, such as moxifloxacin, can also be given for anti-infection treatment. 2, other diseases: patients with hemoptysis see black sputum, usually due to the presence of blood in the airway for a long time, so the hemoptysis is not fresh blood but black, but can also be seen in the nasal bleeding backflow into the pharynx, or bleeding from the pharynx itself. It can also be seen in lesions of the lungs, such as tuberculosis, bronchiectasis, pulmonary embolism, malignant tumors of the lungs, and so on. In addition to symptomatic hemostatic treatment, tuberculosis should be treated with regular anti-TB therapy. Bronchiectasis hemoptysis is caused by infection or capillary rupture, and treatment is usually antibiotic anti-infection treatment. Pulmonary embolism can be treated with anticoagulation and, if necessary, thrombolysis and surgical removal of emboli. Malignant tumors of the lung can be treated with surgical resection, radiotherapy or targeted therapy, depending on the condition. Therefore, if you get up in the morning and spit up black, you must first go to the hospital for further examination to clarify the cause and treat it promptly.