Deep Vein Thrombosis

Your input helps shape an effective treatment plan.

Martha Gulati, MD, FACC, CardioSmart Editor-in-Chief

Deep vein thrombosis (DVT) happens when your blood clumps together to form a clot, usually in the legs.

As the name implies, the clot forms in a vein deep in your body. The worry is that if this clot becomes loose, it can travel through your bloodstream and become lodged in your lung. When this happens, the blood to your lungs is blocked (see pulmonary embolism). This can be very serious—even deadly in some cases. If you have DVT, it can cause your affected leg to ache, swell, feel usually warm or change color. But half of patients have no symptoms at all.

If you think you have DVT, you need to see a doctor right away. There are medications that can help thin your blood and prevent the clot from growing or breaking loose. Be sure to talk with your health care team about things that make you more likely to get DVT—for example, sitting in the same position for a long period of time, certain medications or other health problems.

Use this condition center to learn more about deep vein thrombosis, create a list of questions to ask your health care provider, and much more.

Deep Vein Thrombosis News & Events

Enter the "I am CardioSmart" Contest

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Tell us how you are living well with heart disease for a chance to win a trip for two to Washington, D.C., in March 2017!

ACC Partners with Google to Share Reliable Heart Health Information

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“Ask a Doctor” feature promotes patient-provider engagement.

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CardioSmart News

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The highest death rates from heart disease have shifted to the South since the 1970s.

Decline in Dementia Rates Over Past Three Decades

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Study analyzed data on trends in older adults in the Framingham Heart Study.

Texting Programs Improve Medication Adherence in Patients with Chronic Disease

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A recent study suggests that text messaging programs double the odds of medication adherence in adults with chronic disease.

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Cardiac Rehab is Lifesaving for Heart Patients

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Exercise-based rehab programs reduce risk for heart-related death by 26%.

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Declines in U.S. Death Rates Have Slowed

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Researchers measure progress on heart disease and other leading causes of death, and identify areas for improvement.

Low-Fat Diets Not the Best Weight Loss Solution

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A review of more than 50 clinical trials comparing low- versus higher-fat diets shows no significant difference in weight loss results.

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Analysis of VA data stands in contrast to health disparities in the general U.S. population.

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Music’s effect on heart activity, blood pressure and breathing bodes well for health.

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The benefits of healthy choices carry long into older adulthood.

Longer, But Not Necessarily Healthier, Lives

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Age and Gender Differences in Heart Disease Mortality Rates

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Despite recent drops in cardiovascular mortality rates, death toll among young adults remains high.

Economic and Social Forces Have Big Impact on Heart Health

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Chocolate Protects Against Heart Disease and Stroke

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Moderate chocolate consumption helps, not harms, cardiovascular health.

Action, Not Advice, Helps Smokers Quit

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Mediterranean Diet Improves Memory and Brain Function

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A National Plan to Get America Moving

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Proposed changes to our physical and social environments encourage regular physical activity for Americans throughout the course of the day.

Is There an Exercise 'Sweet Spot' for Longer Life?

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Two large-scale studies take a close look at meeting or exceeding current exercise guidelines, but one thing is clear: Any physical activity is far better than none.