Coughing up bright red blood with mucus

Rarely, problems with the blood vessels in the lungs or elsewhere in the body may cause a person to cough up blood.

An embolism, which happens when a blood clot travels to the lungs, may cause a person to cough up blood.

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People with a history of blood clots, those who must sit for long periods of time or who have recently had surgery, and individuals who smoke are more vulnerable.

An arteriovenous malformation (AVM) means that a major vein has a malformation.

For example, it might be twisted or have other problems.

When a pulmonary AVM ruptures in or near the lungs, it may cause a person to cough up blood.

Blood vessel issues are medical emergencies and can be life threatening. Sudden bleeding or other symptoms, such as confusion or difficulty breathing, warrant a call to 911.

Treatment depends on the location of the issue but may include undergoing surgery, taking blood thinners, and receiving emergency supportive care.

Coughing up a minimal quantity of blood is not an emergency but suggests that a person may ha

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