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Great Saphenous Vein. This vein is a conjunction of the dorsal vein of the great toe and the dorsal venous arch of the foot. It travels up the leg, in front of the inner ankle protruberance (anterior to the medial malleolus), and ascends all the way up the lower limb on the inner aspect leg and thigh (anteromedial aspect).
The veins of the legs return blood back to the heart. When vein problems occur, leg swelling (edema) and sometimes pain or tenderness may occur. One common vein problem is venous insufficiency, which can lead to varicose veins, recurrent leg swelling, and skin changes such as a brown discoloration near the ankles.