What Is the Difference Between Phlegm and Mucus? Explained
Learn the key differences between phlegm and mucus, their roles in the respiratory system, and how they relate to infection and irritation.
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Mucus is a protective fluid produced by the mucous membranes lining your nose, throat, and lungs, helping to trap dust and microorganisms. Phlegm is thicker mucus specifically produced by the respiratory system in response to infection or irritation, often coughed up when you are sick.
FAQs & Answers
- What causes phlegm to become thicker? Phlegm thickens as a response to infections or irritations in the respiratory system, helping to trap and expel harmful microorganisms.
- Is mucus always harmful to the body? No, mucus is actually protective, trapping dust and germs to prevent them from entering deeper into the respiratory tract.
- When should I be concerned about phlegm production? Consult a healthcare professional if phlegm is discolored, persistent, or accompanied by other symptoms such as fever or difficulty breathing.