Pulmonary Embolism Risk Factors and Warning Signs

If you have pain when you are breathing, you may be at immediate risk for a pulmonary embolism if you also have:

• Pain deep in one leg for no clear reason. This can be a sign of a blood clot in the leg (deep vein thrombosis) that could travel to the lungs.
• A history of problems with blood clots, such as deep vein thrombosis or a previous pulmonary embolism.