• Throbbing or cramping pain in one leg (rarely both legs), usually in the calf or thigh
• Swelling in one leg (rarely both legs)
• Warm skin around the painful area
• Red or darkened skin around the painful area
• Swollen veins that are hard or sore when you touch them

Check if you’re at risk of blood clots

• Are in hospital – especially if you cannot move around much, like after an operation
• Go on a long journey (more than three hours) by plane, car or train
• Are overweight
• Smoke
• Are over 60
• Are using combined hormonal contraception such as the combined pill or contraceptive patch
• Have had a blood clot or DVT before
• Are pregnant or have just had a baby
• Have an inflammatory condition such as Crohn’s disease or rheumatoid arthritis

What to do if you have a blood clot

Can blood clots be fatal?

• Pain in your chest or upper back
• Difficulty breathing
• Coughing up blood

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