An Introduction to Deep Vein Thrombosis
A deep vein thrombosis (
DVT) is a blood clot that forms in a vein, deep in the body. Most deep vein clots occur in the leg or hip veins. However, a deep vein thrombosis also can occur in other parts of the body. Although blood clots are nature's way of trying to prevent bleeding, blood clots become dangerous when precautions are not taken.
A blood clot that develops in a vein in the thigh is usually more serious than a blood clot that develops in a vein in the lower leg. It is estimated that 1 out of every 1,000 Americans develops deep vein thrombosis each year.
Risk Factors for Deep Vein Thrombosis
There are many conditions that may increase your risk for deep vein thrombosis. Although some of these conditions alone can increase your risk, your chances for developing DVT increases further when several risk factors are combined.
Symptoms of Deep Vein Thrombosis
DVT symptoms vary depending on the amount of blood flow that is blocked in the legs by blood clots. Large clots may cause more noticeable DVT symptoms, while smaller clots may cause fewer DVT symptoms or no DVT symptoms at all. In fact, only about half of the people with deep vein thrombosis have symptoms.
Common DVT symptoms may include:
- Pain or tenderness in the leg (the pain is usually in one leg and may only be present when standing or walking)
- Feeling of increased warmth in the area of the leg that is swollen or hurts
It is important that you see your doctor immediately if you experience any DVT symptoms.
(Click DVT Symptoms for more information about the symptoms of blood clots.)
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