The risk of a DVT may be increased due to one or more of the following:-

• Immobility for an extended period of time - long flight
• History of DVT
• Malignancy
•  Recent surgery or leg surgery
•  HRT or the oral contraceptive pill 
• Obesity 
• Varicose veins 
• Chronic illnesses 
• Pregnancy and post pregnancy(approx 2 months)
• Existing clotting abnormality 
• History of Cardiac problems
• Dehydration

Ways to reduce the the risk include:-

• Avoid sitting for long periods
• Do not sit with legs crossed
• Drink plenty of water and soft drinks
• Consider wearing compression below knee flight socks

ResT.E.D anti-embolism socks are recommended by doctors to assist in the prevention of Deep Vein Thrombosis (DVT)
Correct fitting (not by shoe size) is essential.

To select correct size, 2 measurements – in cm – are required:

• Calf circumference at the widest point
• Length of lower leg from base of heel to centre back of knee.