If you think you may be at increased risk on long-haul flights, speak to your GP before travelling
- are aged over 60
- are living with overweight or obesity
- smoke
- have had DVT before
- take hormone replacement therapy (HRT)
- take the combined contraceptive pill or use oestrogen-containing contraception, such as the patch or vaginal ring
- have cancer or heart failure
- have varicose veins
- have thrombophilia, a condition that makes your blood clot more easily
- have inflammatory bowel disease or vasculitis
- diabetes
- nerve problems in the legs or feet that reduce sensation
- open leg sores below the knee
- been prescribed compression hosiery
- a blood clot, or a family history of blood clots
- cancer or have undergone treatment for cancer
- certain blood disorders
- heart failure or circulation problems
- recently had surgery, particularly on the hips or knees
- an inherited blood-clotting disorder
- serious circulatory problems
- leg swelling caused by heart problems
- an infection of the leg or phlebitis



