Phlegm Related Disorders

Phlegm refers to thick mucus produced in the respiratory tract, particularly in the lungs and airways. Mucus plays an important role in protecting the respiratory system by trapping dust, germs, and other irritants. Coughing is a natural reflex that helps clear excess mucus and unwanted substances from the airways.

Common symptoms may include persistent coughing, excessive phlegm production, chest discomfort, and difficulty clearing mucus. In some cases, individuals may experience a prolonged cough lasting three weeks or more, chest pain, or coughing up blood or sputum. These symptoms may be associated with respiratory infections or other underlying lung conditions and should be medically assessed.