RESUMEN
Objective To observe the left lower limb great saphenous vein double backbone variations and then conclude correlated var -iation with articles and essays which can offer basic data reference for correlational research and treatment .Methods A male adult corpse fixed by 10%formalin was dissected , and the aberrant vessels were measured by digital caliper and Digimizer .Collected essays and articles about variation of great saphenous vein and its tributary on CNKI from January 1,2000 to May 1,2016.Results There were two major vein of left lower limb great saphenous vein from feet to foramen of saphenous vein of this corpse .The common variations of great saphenous vein and its tributary included variation of quantity and position .Conclusion The variations of great saphenous vein and its tributary do not exist alone.There are usually several variants exist together .So,taking an imaging examination before the operation of great saphenous varicose veins is the key of preventing vessels from injury and reducing the happening of complication .