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Deep Vein Thrombosis
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Blood Heart Circulation

Deep Vein Thrombosis

Deep vein thrombosis (DVT) is a blood clot in a deep vein that requires medical attention to prevent serious complications like pulmonary embolism.

Deep vein thrombosis, or DVT, is a blood clot that forms in a vein deep in the body, most commonly in the lower leg or thigh. If the vein swells, the condition is known as thrombophlebitis. A DVT can break loose and cause a serious lung condition called a pulmonary embolism.

Symptoms

Common signs of DVT include:

  • Warmth and tenderness over the vein
  • Pain or swelling in the affected body part
  • Skin redness

Risk Factors and Prevention

Sitting still for long periods increases your risk of developing a DVT. Certain medicines and disorders can also contribute to clot formation. If you are taking a long trip by car or plane, it is important to take breaks to walk or stretch your legs and drink plenty of liquids.

Treatment

Treatment involves medications to manage pain and inflammation, break up existing clots, and prevent new ones from forming. Additionally, keeping the affected area raised and applying moist heat can provide relief.

Frequently Asked Questions

To prevent recurrence, stay active and avoid prolonged sitting or standing. If traveling or sitting for long periods, get up and walk around every hour or two, or perform leg exercises like ankle pumps and calf raises. Stay well-hydrated, wear compression stockings if recommended by your doctor, and manage any underlying risk factors like high blood pressure or diabetes.
During recovery, follow your doctor's specific advice. Generally, gentle walking is encouraged to improve circulation, but avoid strenuous activities or heavy lifting initially. Elevating the affected leg and applying moist heat can help with pain and swelling. Always consult your healthcare provider before starting any new exercise regimen to ensure it's safe for your condition.
Seek immediate emergency medical attention if you experience sudden shortness of breath, chest pain (especially when breathing deeply), coughing (which may include blood), rapid heart rate, or lightheadedness. These could be signs that the blood clot has traveled to your lungs.
The duration of medication, often blood thinners, varies depending on the cause and severity of your DVT, typically ranging from a few months to indefinitely. While on blood thinners, it's crucial to avoid activities that could cause injury or bleeding, report any unusual bruising or bleeding to your doctor, and discuss all other medications, supplements, and dietary changes (especially vitamin K-rich foods if on warfarin) with your healthcare provider.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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