Coughing up phlegm can be uncomfortable and concerning, especially when the cough lingers. Phlegm, also known as mucus, is produced by the respiratory system to trap and clear irritants like dust, bacteria, and allergens. While it’s normal to have some mucus in the respiratory tract, excessive or persistent phlegm can be a sign of an underlying condition. In this blog, we’ll explore a few common reasons why you might be coughing up phlegm ...