Mozart cartoon with green snot and blood

Here are some answers to questions people ask about blood in phlegm.

What does blood in a person’s phlegm mean?

Traces of blood in phlegm can be a sign of respiratory tract infection or a severe cough.

If bleeding persists, it may indicate an underlying condition such as TB or bronchiectasis.

Mozart cartoon with green snot and blood from nose

Massive bleeding can be a sign of severe damage to the lungs or digestive system.

Should a person worry about blood in their phlegm?

In most cases, a little blood in a person’s phlegm is nothing to worry about but it is best to seek advice just to be sure.

It may be due to an infection or a cough and usually disappears without intervention.

Persistent bleeding that does not go away may indicate a more serious underlying condition.

If there is a lot of blood, a person should seek urgent medical attention.

Can a cold cause blood in phlegm?

Yes, a long-lasting or severe cough can cause a person to have blood in their phlegm.

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