Deep vein thrombosis (DVT) occurs when a blood clot forms in one of the veins deep in the body, usually a leg vein deep in a calf or thigh muscle. DVT can partly or completely block blood flow, which causes chronic pain and swelling. The clot might damage valves in blood vessels, it might also break free and travel through your blood stream to major organs, such as your lungs or heart. If symptoms of DVT - such as swelling in one or both legs, pain or tenderness, or acute leg heaviness or fatigue - occur suddenly it is important to seek medical advice promptly. According to the NHS, 1 in every 1,000 people in the UK is affected by DVT every year. Follow the links below to find BootsWebMD's comprehensive coverage about how deep vein thrombosis develops, what it looks like, how it’s treated, and much more.
Slideshows & images