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Coughing up a lot of phlegm (mucus) – the phlegm may be clear, white, yellow or green

Coughing up significant amounts of phlegm (mucus) – which can appear clear, white, yellow, or green – can be linked to different health issues. It's advisable to seek advice from a healthcare professional if you have this symptom.

When to seek medical help

If your coughing up a lot of phlegm (mucus) – the phlegm may be clear, white, yellow or green is severe, sudden, or accompanied by other concerning symptoms, seek urgent medical attention. Always consult a healthcare professional if you are concerned.

Conditions related to coughing up a lot of phlegm (mucus) – the phlegm may be clear, white, yellow or green