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  1. Sputum: Definition, colors, causes, and when to see a doctor

    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.

  2. Understanding Sputum and What the Different Colors Mean

    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 …

  3. Sputum - Wikipedia

    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 …

  4. What phlegm can tell you about your health - The Independent

    3 days ago · 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.

  5. Mucus: Phlegm, Causes, Colors & How To Get Rid Of It

    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 …

  6. Sputum: Definition, Colors, Causes, and Conditions (2025)

    May 14, 2025 · Sputum is a mixture of saliva and mucus coughed up from the respiratory tract, typically as a result of infection or chronic conditions like bronchitis, pneumonia, or …

  7. Understanding Mucus in Your Lungs - American Lung Association

    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 …

  8. Sputum Culture: MedlinePlus Medical Test

    Sputum, also known as phlegm, is a thick type of mucus made in your lungs. If you have an infection or chronic illness affecting the lungs or airways, sputum can settle in your lungs, and …

  9. Sputum | The Atlas of Emergency Medicine, 5e | AccessMedicine

    Sputum is expectorant from the lungs and respiratory passages that contains mucus and pus and is a clue to the severity of respiratory illness. While microscopic examination provides the most …