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Occurs when when a blood clot forms in one or more of the deep veins in your body.  Deep Vein Thrombosis can usually be caused if you undergo certain medical conditions that affect how your blood clots. DVT causes leg pain and swelling. Deep Vein Thrombosis can also be fatal because blood clots in your veins can break loose and travel through your blood stream ending up in your lungs, blocking blood flow.

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Pain areas: in the calf, foot, or leg
Also common: swelling in extremities, tenderness, or warm skin

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Many individuals who have a first episode of DVT or PE will have a recurrent event.

Without anticoagulation, the risk recurrence of VTE (DVT or PE) is thought to be 50% within three months of a PE. Risk of recurrence within the first year of a VTE following three months of anticoagulation is thought to be 8%.

Risk of recurrence is reduced by the use of compression stockings.

The most serious complication of DVT is PE. The risk of PE is higher in proximal clots. Thrombosis of the iliofemoral veins carries a worse prognosis with increased incidence of late clinical complications such as post-thrombotic syndrome.

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Blood thinners: Deep vein thrombosis is most commonly treated with anticoagulants, also called blood thinners. These drugs, which can be injected or taken as pills, decrease your blood's ability to clot. They don't break up existing blood clots, but they can prevent clots from getting bigger and reduce your risk of developing more clots.

Clot busters: If you have a more serious type of deep vein thrombosis or pulmonary embolism, or if other medications aren't working, your doctor might prescribe drugs that break up clots quickly, called clot busters or thrombolytics.

Filters: If you can't take medicines to thin your blood, you might have a filter inserted into a large vein — the vena cava — in your abdomen. A vena cava filter prevents clots that break loose from lodging in your lungs.

Compression stockings: To help prevent swelling associated with deep vein thrombosis, these are worn on your legs from your feet to about the level of your knees.

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Ask your doctor about need for “blood thinners” or compression stockings to prevent clots, whenever you go to the hospital

Lose weight, if you are overweight

Stay active

Exercise regularly; walking is fine

Avoid long periods of staying still

Get up and move around at least every hour whenever you travel on a plane, train, or bus, particularly if the trip is longer than 4 hours

Do heel toe exercises or circle your feet if you cannot move around

Stop at least every two hours when you drive, and get out and move around

Drink a lot of water and wear loose fitted clothing when you travel

Talk to your doctor about your risk of clotting whenever you take hormones, whether for birth control or replacement therapy, or during and right after any pregnancy

Follow any self-care measures to keep heart failure, diabetes, or any other health issues as stable as possible