Understanding Deep Vein Thrombosis (DVT) While Flying and How to Prevent It

Long flights can be exciting as they take you to new destinations, but they come with their own set of risks—including deep vein thrombosis (DVT). DVT occurs when a blood clot forms in a deep vein, usually in the legs.

Sitting in cramped spaces for prolonged periods increases this risk. Luckily, with a few clever tips and tricks, you can greatly reduce your chances of experiencing DVT while flying.

Why Does Flying Increase the Risk of Deep Vein Thrombosis?

Prolonged Inactivity: Being seated for extended periods restricts blood flow in the legs.
Dehydration: Cabin air is dry, which can thicken your blood and contribute to clot formation.
Compression: Tight spaces and limited legroom can compress veins, slowing circulation.

Clever Tips to Prevent DVT on Long Flights

1. Move Regularly

Get Up and Walk: Aim to walk up and down the aisle every 1-2 hours. Set a reminder on your phone if needed.
In-Seat Exercises: Flex and point your toes, rotate your ankles, and do simple leg lifts to promote blood flow.

2. Wear Compression Socks

These specialized socks improve circulation by applying gentle pressure to your legs. Put them on before boarding and wear them throughout the flight.

3. Stay Hydrated

Drink plenty of water to keep your blood thin and flowing. Avoid excessive caffeine and alcohol, which can dehydrate you.

4. Choose the Right Seat

Opt for an aisle seat, which gives you easier access to get up and move around. Extra legroom seats are even better if your budget allows.

5. Stretch Before and During the Flight

Perform stretches in the terminal before boarding, such as lunges or calf raises. Onboard, do light stretches when standing in the aisle.

6. Dress Comfortably

Wear loose-fitting clothing to avoid restricting circulation. Tight jeans or waistbands can exacerbate the problem.

7. Consider Medication

For high-risk travelers, a doctor may recommend a low-dose aspirin or anticoagulant before the flight. Always consult your physician before taking medication.

8. Board Calm and Relaxed

Stress can affect circulation. Take deep breaths, meditate, or listen to calming music to stay relaxed.

Things to Know about DVT Before You Fly:

Who Is at Higher Risk? People over 60, pregnant travelers, those with a family history of DVT, and individuals who are overweight or have certain medical conditions (like cancer or clotting disorders) are more susceptible.
Signs of DVT: Swelling, pain, or redness in one leg are common symptoms. If these occur, seek medical attention immediately.
Post-Flight Tips: Walk and stretch as soon as possible after landing to get your circulation back to normal.

7 Useful Items to Help Prevent DVT During a Flight

Compression Socks: Boost circulation and reduce swelling. Socks without the toes, are a comfortable option.
Reusable Water Bottle: Stay hydrated without relying on limited in-flight service. A collapsible bottle is the perfect choice if you don’t want it to be in your way during other times in travel. We like the BPA-Free Silicone Foldable Water Bottle Cup with Straw (Leak-Proof, Durable and Lightweight) from Amazon.
Travel Pillow: Helps you shift positions comfortably to avoid staying static.
Portable Footrest: Keeps your legs elevated and improves blood flow. A foot hammock is the best thing ever. Remember to buy one for you and your travel partner.
Comfortable Clothing: Loose-fitting outfits to avoid restriction.
Fitness Band, Tracker or Smartwatch : Set movement reminders during the flight. You don’t need the most expensive one in store, just something that can help you monitor, should you wish to do so.
Small Massage Ball: Use to massage your feet and calves for better circulation.

VERY IMPORTANT TRAVEL TIP: Consider Medication

For high-risk travelers, a doctor may recommend a low-dose aspirin (e.g., Disprin) or anticoagulant before the flight. Aspirin can help prevent clot formation by thinning the blood, but it’s crucial to consult your physician beforehand to ensure it’s safe for you.

Note to self: Economy seats can be tight but it works just fine. This gives you the opportunity to swing your legs back and forth. (Every bit of extra movement helps.)

Final Thoughts

While the thought of DVT can be concerning, the good news is that simple preventive measures can make all the difference. Keep moving, stay hydrated, and make thoughtful choices to ensure a comfortable and safe flight. By following these tips, you can focus on the adventure ahead rather than the risks along the way.