Travel Smart: How to Prevent Blood Clots on the Go This Spring and Summer

Medically Reviewed by: Michael Duffy, DO

As spring and summer vacations ramp up, so do long hours spent in cars, planes, and trains. While the excitement of travel is hard to beat, it's important to be aware of the health risks that come with extended periods of sitting—especially when it comes to blood clots, or deep vein thrombosis (DVT).

DVT occurs when a blood clot forms in a deep vein, often in the legs. If left untreated, the clot can break free and travel to the lungs, causing a potentially life-threatening pulmonary embolism. The good news? There are several simple ways to reduce your risk—without missing a moment of your adventure.

1. Get Moving

One of the most effective ways to prevent DVT is to move regularly. On road trips, take breaks every 1-2 hours to get out, stretch, and walk around. If you're flying, make it a point to stand up, stretch, or walk the aisle every 2-3 hours. Even ankle rolls and foot flexes in your seat can help keep circulation flowing.

2. Stay Hydrated

Dehydration can thicken the blood and increase your risk of clotting. Aim to drink water regularly throughout your travel day—especially if you're flying, where the cabin air tends to be very dry. Skip the cocktails and caffeinated drinks before and during your flight, as these can contribute to dehydration.

3. Dress for Circulation

Tight clothing, especially around the waist or legs, can restrict blood flow. Opt for loose, breathable travel outfits and consider wearing compression socks if you’re at higher risk or traveling for long stretches. These specially designed socks help maintain healthy circulation in your lower legs.

4. Know Your Risk Factors

Certain factors increase the risk of DVT. Your level of risk depends on the duration of travel as well as whether you have any other risks for blood clots. Most people who develop travel-associated blood clots have one or more other risks for blood clots, such as:

• Older age (risk increases after age 40)
• Overweight or obesity
• Recent surgery or injury (within 3 months)
• Use of estrogen-containing contraceptives (for example, birth control pills, rings, patches)
• Hormone replacement therapy (medical treatment in which hormones are given to reduce the effects of menopause)
• Pregnancy and the postpartum period (up to 3 months after childbirth)
• A previous blood clot
• An inherited blood clotting disorder
• Family history of blood clots
• Active cancer or recent cancer treatment
• Certain other long-term conditions, or diabetes
• Limited mobility (for example, a leg cast)
• Catheter placed in a large vein

Source: CDC

5. Know the Signs and Symptoms of DVT or PE

DVT:

About half of people with DVT have no symptoms at all. The following are the most common signs or symptoms of DVT that occur in the affected leg or arm:

• Swelling
• Pain or tenderness
• Warmth
• Redness or discoloration

If you have any of these signs or symptoms, you should see your doctor as soon as possible.

PE (Pulmonary Embolism):

You can have a PE without any symptoms of a DVT. Signs and symptoms of PE can include:

• Difficulty breathing
• Faster than normal or irregular heartbeat
• Chest pain or discomfort, which usually worsens with a deep breath or coughing
• Cough or coughing up blood
• Very low blood pressure, lightheadedness, or fainting

If you have any of these signs or symptoms, you should seek medical help immediately.

6. Keep It Moving Post-Arrival

Once you've reached your destination, don't let jet lag or car fatigue keep you inactive. A short walk or light stretch after check-in not only helps prevent clots but also boosts energy and reduces swelling in the legs.
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Bottom Line:

Traveling doesn't have to be risky when it comes to your health. A few thoughtful choices can help you enjoy every leg of your journey, without putting your circulation on pause. Wherever your spring and summer adventures take you, make health part of the journey. Travel safe and stay well!