ranging from infections and asthma to chronic lung disease and other conditions.
They should not automatically be interpreted as cancer or another serious disease.
When Coughing Up Blood Is an Emergency
Coughing up blood can sometimes occur after irritation from severe coughing, but it can also have more serious causes.
Seek urgent medical attention if you cough up a significant amount of blood, if the bleeding is persistent or increasing, or if it occurs together with:
Difficulty breathing
Chest pain
Severe dizziness
Fainting
Rapid heartbeat
Significant weakness
Large amounts of blood or serious breathing difficulty require emergency care.
How to
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