Deep Vein Thrombosis and Feet: Signs, Symptoms and Prevention

Deep Vein Thrombosis (DVT) is a serious condition where a blood clot forms in a deep vein, most often in the legs. While DVT primarily affects the legs, it can have noticeable effects on the feet, and it's crucial to understand how to prevent it. 

5 different ways DVT can affect the feet:

Swelling - DVT can cause swelling in the affected leg, and this swelling can extend down to the foot and ankle.  

Pain and Tenderness - You might experience pain or tenderness in your foot, particularly when walking or standing.  

Colour Changes - The skin of your foot may become discoloured, appearing reddish, bluish, or pale.  

Warmth - The affected foot may feel warmer to the touch than the other foot.  

Plantar Vein Thrombosis - Although less common, blood clots can form in the veins of the sole of the foot itself. This is called plantar vein thrombosis. This can cause heel pain and pain in the arch of the foot.  

DVT Prevention

Preventing DVT is essential, especially if you're at risk. Below, are some key strategies: 

Stay Active

Regular physical activity is crucial for maintaining healthy blood flow.  

If you're sitting for long periods, take frequent breaks to walk around.  

Maintain a Healthy Weight

Excess weight can increase your risk of DVT.  

Stay Hydrated

Drinking plenty of water helps to keep your blood flowing smoothly.  

Compression Stockings

These stockings can help improve blood flow in your legs.  

They are especially useful for people at high risk of DVT, such as those recovering from surgery or taking long trips.  

Leg Exercises

If you're sitting for extended periods, perform simple leg exercises like ankle rotations and calf raises.  

Avoid Prolonged Sitting or Standing

If you must sit or stand for long periods, change positions frequently.  

Medical Considerations

If you're at high risk, your doctor may prescribe anticoagulant medication (blood thinners) to help prevent clots.  

If you are going to have surgery, talk to your doctor about DVT prevention.

Travel Precautions:

• When travelling long distances, especially by plane, take these steps:
• Get up and walk around regularly.
• Do leg exercises while seated.
• Stay hydrated.
• Consider wearing compression stockings.

If you experience any symptoms of DVT, such as swelling, pain, or discolouration in your leg or foot, seek immediate medical attention. DVT can lead to a pulmonary embolism (PE), a life-threatening condition that occurs when a blood clot travels to the lungs. 

Frequently Asked Questions

Can DVT cause pain in the foot only?

It is uncommon. DVT usually starts in the calf or thigh, and any foot symptoms tend to come with pain, swelling or tenderness higher up the leg. A clot can occasionally form in the veins of the sole of the foot (plantar vein thrombosis), which may cause pain in the arch or heel, but this is rare. Any unexplained pain and swelling in one foot or leg should be checked by a doctor.

How can I tell if foot swelling is caused by DVT or something else?

Swelling caused by DVT usually affects one leg or foot only, and often comes with pain, warmth, or red or darkened skin. Swelling in both feet is more often linked to heat, long periods of standing, pregnancy or fluid retention. It is not possible to rule out DVT from symptoms alone, so if the swelling is in one leg, or is painful, warm or discoloured, contact your GP or NHS 111 the same day.

Who is most at risk of DVT?

The risk is higher if you are over 60, overweight, a smoker, or have had DVT before. It is also higher during pregnancy and for up to six weeks after giving birth, after surgery or a stay in hospital, when you are unable to move much, and if you take the combined contraceptive pill or HRT. Certain conditions, such as cancer and heart failure, also increase the risk.

Do compression stockings help prevent DVT?

Compression stockings can help keep blood moving in the legs and are often recommended after surgery or for long-haul travel. They are not suitable for everyone, including some people with circulation problems, so ask your GP or pharmacist which type and pressure is right for you before wearing them.

How can I reduce my risk of DVT on a long flight?

On journeys of four hours or more, get up and walk around when you can, do ankle rotations and calf raises while seated, drink plenty of water and limit alcohol. Wear loose, comfortable clothing and footwear that will not dig in if your feet swell. If you are at higher risk, speak to your doctor before you travel.

When should I seek urgent medical help?

Contact your GP or NHS 111 straight away if you have pain, swelling, warmth or skin colour changes in one leg or foot. Call 999 or go to A&E if you also have sudden breathlessness, chest pain that is worse when you breathe in, or you cough up blood, as these can be signs of a pulmonary embolism.

What shoes should I wear if my feet are swollen?

Footwear cannot prevent or treat DVT, but the right shoes can make swollen feet more comfortable. Look for a wide fit with a roomy toe box, soft leather or suede that gives with the foot, and adjustable straps or fastenings that let you loosen the fit as your feet change through the day. Avoid shoes that pinch or leave marks, as tight footwear can add to discomfort. Sargasso & Grey shoes are handcrafted in Spain in soft leather and suede, and our swollen feet collection brings together adjustable and premium soft styles for feet that need more room.

You May Also Like

• The Best Shoes for Swollen Feet and Ankles – what to look for in footwear when your feet and ankles swell, and the styles that make room for them.
• The Best Sandals for Wide and Swollen Feet – supportive, adjustable sandals for warm weather and travel, when feet are most likely to swell.
• Healthy Habits: A Footcare Reset for Comfortable, Supported Feet – simple daily habits to keep your feet comfortable, active and well supported.

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