Which is more serious, a productive cough or a dry cough, depends on the accompanying symptoms and the disease present. It is a less severe type for some diseases that can be relieved or cured with treatment, and a severe type for some diseases that endanger the patient’s life. Cough with sputum is commonly associated with diseases common to the respiratory system of the lungs, such as pneumonia, tuberculosis, and pneumonia. In addition to cough and sputum, patients also have chills and high fever, and after treatment, tuberculosis can be completely absorbed and improved. In addition to cough and sputum, patients also have chest pain, coughing up blood, low fever, and night sweats. There is a type of dry cough that is irritating and commonly associated with an obstructive cough. Lung cancer is a common malignant tumor of the respiratory system, and it is a disease that endangers people’s lives is not curable. Therefore, which is more serious, cough with phlegm or dry cough, is determined by the accompanying symptoms and the disease present.