For New Yorkers, a long-haul flight is often just part of life — whether for business, family, or a well-earned vacation. But sitting still for hours at a time is one of the most common triggers for deep vein thrombosis (DVT), a blood clot that forms in the deep veins of the leg. Sometimes called “traveler’s thrombosis,” flight-related DVT is largely preventable with a few simple habits. Here is how to protect your circulation the next time you fly.
Why Flying Raises DVT Risk
When you sit for an extended period, blood flow in your legs slows down. The calf muscles, which normally pump blood back toward the heart with each step, stay inactive. Add the cramped seating, dehydration from cabin air, and reduced air pressure of a long flight, and conditions become favorable for a clot to form. The risk rises with flights longer than four hours and is higher for travelers who already have DVT risk factors.
Move Your Legs Regularly
Movement is your best defense. On a long flight:
- Stand up and walk the aisle every one to two hours when it is safe to do so
- Flex and point your feet, and rotate your ankles, while seated
- Tighten and release your calf muscles periodically to keep blood moving
- Choose an aisle seat when possible so it is easier to get up
Stay Hydrated
Dehydration thickens the blood and makes clotting more likely. Drink plenty of water before and during your flight, and limit alcohol and caffeine, both of which contribute to dehydration.
Questions about your treatment options? Dr. Fox can help.
Book a ConsultationWear Compression Stockings
Graduated compression stockings gently squeeze the legs to support healthy blood flow and reduce swelling. For frequent travelers or anyone with risk factors, they are an easy and effective precaution. A vascular specialist can recommend the right compression level for you.
Dress Comfortably and Avoid Crossing Your Legs
Wear loose, comfortable clothing that does not restrict circulation at the waist or legs, and avoid sitting with your legs crossed for long stretches, which can further restrict blood flow.
Know Whether You Are Higher Risk
If you have a history of blood clots, recent surgery, pregnancy, or other risk factors, talk to your doctor before a long trip. In some cases, additional precautions or preventive measures may be recommended. And no matter your risk level, learn the warning signs of DVT so you can act quickly if symptoms appear in the days after travel.
Travel Smart, Protect Your Circulation
A little preparation goes a long way. By staying mobile, hydrated, and aware, you can dramatically reduce your risk of a travel-related clot. If you have questions about your vascular health or want a personalized prevention plan, the team at Fox Vein & Vascular in Manhattan is here to help. Learn more on our DVT treatment page.
Concerned about a blood clot or unexplained leg pain or swelling? Don’t wait. Schedule a consultation with Dr. David Fox at Fox Vein & Vascular for an expert vascular evaluation. Call (212) 362-3470 or visit foxvein.com to book your appointment.