Tracheitis is a common respiratory disease. Infections by microorganisms, physical and chemical factors, allergies, and other factors can cause tracheitis. Symptoms often include coughing and expectorating phlegm after contracting tracheitis. Constantly coughing up phlegm is not good, as we know that coughing up phlegm is not a normal condition but a pathological manifestation. This often occurs when there is inflammation in the tracheal mucosa, causing an increase in secretions which then mix with inhaled dust, pathogens, etc., and are expelled by coughing. Therefore, constantly coughing up phlegm indicates persistent inflammation of the organs, which is not a good sign.