Varicose vein surgery. Close-up of surgical tools being used in an operation to remove varicose veins from a patient's legs. The incision in the leg is being held open by surgical retractors, and gauze and a pair of scissor forceps are being used to soak up the blood and remove the defective vein. Varicose veins form due to defective valves in veins, usually those of the legs. As blood is circulated around the legs, these valves prevent it from sinking to the feet. As the valves stop working, blood pools downwards, distending the veins. Surgical removal is carried out in severe cases, allowing the blood to flow through other veins instead. Photographed in the UK.
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