10 Warning Signs of a Blood Clot in the Leg You Should Know
A blood clot in a deep vein of the leg is called deep vein thrombosis (DVT). It can be serious because a clot can sometimes travel to the lungs and cause a pulmonary embolism (PE).
10 possible warning signs
- Swelling — especially swelling in one leg.
- Pain or tenderness without an obvious injury.
- Aching or cramping in the calf or leg.
- Unusual warmth in the affected area.
- Red or discolored skin.
- A feeling of heaviness or discomfort in the affected leg.
- Symptoms that develop suddenly rather than gradually.
- Swelling, pain, or warmth concentrated in one leg rather than both.
- Symptoms after prolonged immobility, such as a long trip, bed rest, or hospitalization.
- A combination of swelling, pain, warmth, and skin discoloration should be taken particularly seriously.
Important: These symptoms don’t prove that you have a blood clot. Muscle injuries, infections, and other conditions can cause similar symptoms. Some people with DVT have no symptoms at all.
🚨 Watch for signs of a pulmonary embolism
If you have possible DVT and suddenly develop shortness of breath, chest pain (especially when breathing deeply), coughing up blood, a fast/irregular heartbeat, severe lightheadedness, or fainting, seek emergency medical attention immediately.
