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3. What White Phlegm Means

White phlegm is significant for several serious health conditions. You are most likely having some problems breathing because of it and should see a doctor right away. White phlegm may be caused by:

  • Viral bronchitis
  • Congestive heart failure
  • COPD (your lungs increase mucus and your airways narrow)
  • GERD (a digestive disorder that can cause white mucus)

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Disclaimer

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.