How deep vein thrombosis (DVT) forms
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Deep vein thrombosis (DVT) occurs when 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 or swelling, but may occur without any symptoms. Deep vein thrombosis can develop if you have certain medical conditions that affect how your blood clots. Deep vein thrombosis can also happen if you don't move for a long time, such as after surgery, following an accident, or when you are confined to a hospital or nursing home bed.
This video in 30 seconds
This video explains how deep vein thrombosis forms. It describes DVT as a blood clot forming in one or more deep veins, usually in the legs, which can cause leg pain or swelling or occur without symptoms, and can develop with conditions affecting clotting or after long periods without moving, such as after surgery, an accident or confinement to bed.
Key points
- Deep vein thrombosis formation is explained
- Clots in deep veins, usually in the legs, are described
- Leg pain, swelling or absence of symptoms are covered
- Clotting conditions and prolonged immobility as factors are described
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