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Coughing up blood (blood in phlegm)


Open all pages about Coughing up blood (blood in phlegm)

You might cough up blood if you have a persistent or severe cough, or a chest infection, pneumonia or bronchitis.

Coughing up blood can have lots of possible causes. It could be something serious so it's important to get it checked.

Page last reviewed: 29/10/2021
Next review due: 29/10/2024