Blood clots: Four 'important signs' of deep vein thrombosis – 'Alert your doctor'

Other risk factors can include obesity, smoking, taking the contraceptive pill or hormone replacement therapy, and having varicose veins.

If you do have a DVT, which will be confirmed by medical professionals, the treatment will involve anticoagulant medication.

Examples include warfarin and rivaroxaban, which will usually be prescribed for at least three months.

“If anticoagulant medicines are not suitable, you may have a filter put into a large vein – the vena cava – in your tummy,” the NHS added.