Do not use if you have serious circulatory problems such as active arterial or venous disease. Please consult a healthcare professional on the suitability of this product if you have any of the following: previous history of venous thrombosis (blood clot), superficial vein thrombosis, diabetes, severe obesity, reduced mobility including paralysed lower limb, heart disease, severe varicose veins, recent major surgery or injury to lower limbs/abdomen, stroke, cancer, chemotherapy treatment, genetic blood clotting disorder (e.g. Factor V Leiden), or if you are pregnant.