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  • Sputum: Definition, colors, causes, and when to see a doctor
    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
  • Mucus: Phlegm, Causes, Colors How To Get Rid Of It
    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 you have an infection It’s also called phlegm, snot or sputum Mucus is usually thin and clear
  • 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 investigation of respiratory infections, and cytological investigations of respiratory system
  • Phlegm Color Chart: What the Color of Your Phlegm Means
    For example, yellow or green phlegm can be a sign of a respiratory infection, while red or pink phlegm can indicate lung bleeding or inflammation Phlegm is typically clear and thin Your body produces it as part of its natural defense against irritants and infections
  • Mucus vs. Phlegm vs. Sputum: Whats the Difference? (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 expectorated (expelled by coughing) material
  • Sputum: Contents, Function, Conditions, Colors - Verywell Health
    Sputum, or phlegm, is a type of mucus secreted by cells in the lower airways (bronchi and bronchioles) of the respiratory tract It differs from saliva, which is produced higher up in the mouth
  • Sputum Analysis - StatPearls - NCBI Bookshelf
    The sputum analysis involves an analytical approach to investigate the cellular and acellular components expelled from the patient's upper respiratory tract This procedure is essential in evaluating and managing lower respiratory infections or other longstanding health conditions [1]
  • Green, Yellow, and Brown Phlegm: What Does it Mean? - Healthline
    When you cough up phlegm, it’s called sputum You may notice different colored sputum and wonder what the colors mean Ongoing studies are questioning the importance of the color of
  • Understanding Respiratory Health: What is Sputum and What Does it Mean . . .
    Sputum, also known as phlegm, is a thick, sticky substance produced by the mucous membranes in the respiratory tract It plays a crucial role in protecting our lungs by trapping dust, bacteria, and other foreign particles that enter our airways
  • Understanding Mucus in Your Lungs - American Lung Association
    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 fibrosis, bronchiectasis, NTM lung disease or asthma





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