Why does pulmonary embolism cause chest pain?

Pain can be sharp and may worsen with a deep breath or cough because the outer lining of the lung is sensitive to movement. A pulmonary embolism can also strain the heart and affect breathing. Chest Pain is a common presentation of Pulmonary Embolism, but chest pain has many possible causes and cannot be diagnosed by its feeling alone.

New, unexplained chest pain needs urgent medical assessment, particularly when it comes with breathlessness, a fast heartbeat, coughing up blood, collapse, or a swollen painful leg. Do not drive yourself if you feel severely unwell. Emergency clinicians may check oxygen levels, heart rhythm, blood tests, and imaging to find the cause. If you have already been diagnosed with pulmonary embolism, take anticoagulant medicine exactly as prescribed and seek advice before adding new medicines.

Call emergency services now for severe chest pain, sudden breathing difficulty, fainting, blue or grey lips, confusion, or coughing up blood with feeling unwell. These symptoms can signal a serious problem and should not be watched at home. Even pain that eases should be assessed urgently if it was sudden or associated with shortness of breath.

Ask what was found to be causing the pain, whether you need further testing, and which symptoms should prompt emergency help after you leave. If anticoagulants are prescribed, ask how to take them safely and what to do after a missed dose.