Deep vein thrombosis and Symptoms

Deep vein thrombosis (DVT) is a condition in which a blood clot (thrombus) forms in one or more of the deep veins in your body, usually in your legs. Deep vein thrombosis can cause leg pain, but often occurs without any symptoms.

Deep vein thrombosis can develop if you're sitting still for a long time, such as when traveling by plane or car, or if you have certain medical conditions that affect how your blood clots.

Deep vein thrombosis is a serious condition because a blood clot that has formed in your vein can break loose, travel through your bloodstream and lodge in your lungs, blocking blood flow (pulmonary embolism).

Symptoms

In about half of all cases, deep vein thrombosis occurs without any noticeable symptoms.

When deep vein thrombosis symptoms occur, they can include:

1. Swelling in the affected leg, including swelling in your ankle and foot.
2. Pain in your leg; this can include pain in your ankle and foot. The pain often starts in your calf and can feel like cramping or a charley horse.
3. Warmth over the affected area.
4. Changes in your skin color, such as turning pale, red or blue.