Deep Vein Thrombosis (DVT): What You Need to Know

Deep vein thrombosis, or DVT, is a blood clot that forms in a deep vein, usually in the leg. When a clot blocks blood flow, it can cause pain, swelling, and in the worst case, travel to the lungs and become a pulmonary embolism. Knowing the basics helps you catch it early and act fast.

Common Signs and Symptoms

The most obvious clue is sudden leg pain that feels like a cramp or soreness that doesn't go away. The affected area may look larger or feel warm to the touch. A red or bluish tint on the skin is another red flag. If you notice any of these signs after a long flight, surgery, or a period of immobility, treat them seriously.

Everyone’s body reacts differently, so some people only feel mild discomfort. That’s why it’s important to pay attention to any change in how your leg feels, especially if you’ve been sitting for hours. Even a small, painless swelling can be a sign of a clot forming.

How to Reduce Your Risk

Move around as much as you can. If you’re traveling, stand up, stretch, or walk the aisle every hour. Simple leg exercises—like ankle circles or foot pumps—keep blood flowing. For those stuck at a desk, set a timer to stand and walk for a few minutes every hour.

Stay hydrated. Dehydration thickens blood, making clots more likely. Aim for at least eight glasses of water a day, and avoid excessive caffeine or alcohol, which can dehydrate you. If you’re on hormone therapy or birth control, talk to your doctor about extra precautions.

Compression stockings can help, especially after surgery or if you have a history of DVT. They apply gentle pressure that pushes blood back toward the heart, reducing pooling in the legs. Choose the right size and wear them as directed for the best effect.Maintain a healthy weight and stay active. Regular walking, swimming, or cycling improves circulation and cuts down on clot risk. Even a short daily walk makes a big difference over time.

If you have a family history of clotting disorders, ask your doctor for a blood test. Conditions like Factor V Leiden can raise your chances of DVT, and knowing about them lets you take targeted steps to avoid trouble.

When you suspect DVT, don’t wait. Call your healthcare provider right away. They may order an ultrasound to confirm the clot and decide whether you need blood thinners or another treatment.

Remember, DVT isn’t inevitable. Simple habits—moving regularly, staying hydrated, and watching for warning signs—can keep you safe and healthy. Keep this guide handy, and you’ll know exactly what to do if a clot threatens to strike.