Some travellers may have medical conditions that make them more prone to DVT.
Minor risk | Moderate risk | Substantial risk |
|---|---|---|
Aged over 40 | Recent heart disease | Previous or current DVT |
Very tall, very short, or obese | Pregnant or on any hormone medication, particularly the contraceptive pill and HRT | Known clotting tendency |
Previous or current leg swelling from any cause | Recent major leg injury or leg surgery (less than 6 weeks) | Recent major surgery or stroke (within 6 weeks) |
Recent minor leg injury or minor body surgery | Family history of DVT | Current malignant disease or chemotherapy |
Minor varicose veins | Extensive varicose veins | Paralysed lower limb |
Polycythaemia | Depletion of body fluids causing increased blood thickening |
Advice and action to take
Minor risk | Moderate risk | Substantial risk |
|---|---|---|
A | B | C |
Drink plenty of water before, during and after flight | Recommendation A+B | Recommendation A+B+C |
Keep mobilised – walk around the cabin whenever you can | Consult with GP prior to flight | Low molecular weight heparin or warfarin |
Wear support tights or flight socks | Wear graduated compression stockings or flight socks |
Passengers should seek medical advice if they are concerned.