Rust-Colored Sputum: Understanding the Causes, Symptoms, and When to Take Action
What is Sputum, and Why Does Its Appearance Matter? Sputum, often confused with saliva, is a mucus that originates in the lower respiratory tract, specifically the lungs and airways. Its purpose is to trap and remove debris, pathogens (like bacteria and viruses), and other irritants from the respiratory system. It’s produced constantly, but under normal … Read more
