Coughing and spitting in the morning may be caused by bronchitis, lung infection, pharyngolaryngitis, chronic obstructive pulmonary disease, etc. and should be taken seriously. 1. Bronchitis: refers to the inflammation of the mucous membrane of the trachea, bronchial tubes and their surrounding tissues. The main manifestations are nasal congestion, runny nose, cough, sputum, asthma and other symptoms. It can cause coughing and spitting in the morning. 2. Lung infection: refers to the inflammatory disease of the terminal airways, alveoli and interstitium of the lungs. The main manifestations are fever, cough, cough sputum, chest pain, dyspnea and other symptoms. It can also cause morning cough and sputum. 3. Pharyngolaryngitis: refers to the inflammation of the mucous membrane of the throat, submucosal tissues and lymphatic tissues. It is mainly characterized by sore throat, hoarseness, cough, sputum, fever, dyspnea and other symptoms. It can also cause morning cough and sputum. 4. Chronic Obstructive Pulmonary Disease (COPD): a preventable and treatable disease characterized by persistent airflow limitation. It is characterized by chronic cough, sputum, shortness of breath or dyspnea, wheezing, chest tightness and other symptoms. It can also cause morning cough and sputum. There are many other causes of morning cough and sputum, which should be taken seriously, and prompt medical attention should be given to identify the cause of the disease and further treatment or therapy as prescribed by the doctor.