Jan 22, 2024 · Sputum is a type of thick mucus produced by the lungs. This article explains the types of sputum, what causes changes, and when to speak with a doctor.

Sep 18, 2024 · It lines your mucous membranes and helps trap and destroy or clear out germs and harmful particles. Mucus gets thick and sticky and might be white, yellow or green when …

Sputum is mucus that is coughed up from the lower airways (the trachea and bronchi). In medicine, sputum samples are usually used for a naked-eye examination, microbiological …

May 14, 2025 · Sputum is phlegm that is coughed up from the lower airways—the trachea, bronchi, and lungs. While phlegm refers to the substance itself, sputum refers to the …

Aug 2, 2024 · Producing clear phlegm often means your body is reacting to irritants or inflammation, while yellow or green phlegm may suggest an infection. Red, pink, brown, or …

Aug 22, 2025 · Sputum is a mix of cells, foreign matter, and white blood cells produced in the respiratory tract. An increased amount of sputum is often due to increased respiratory …

Jan 3, 2026 · What can this phlegm – also called mucus, snot, sputum, catarrh and booger – really tell us about our health? Here’s what to look for, and when to see a doctor.

Jul 14, 2021 · Mucus in the lungs is known as phlegm or sputum. It is a common symptom in chronic lung diseases such as COPD (including chronic bronchitis and emphysema), cystic …

Sputum is not saliva but the thick mucus (sometimes called phlegm) which is coughed up from the lungs. The body produces mucus to keep the thin, delicate tissues of the respiratory tract …

Apr 12, 2023 · Sputum is a mucus layer that serves a protective lining. The mucus layer found in the respiratory tract prevents the area from drying out and becoming irritated. It acts as a …