<prompt> NOT a cause of varicose veins: March 2013 fSuperficial venous thrombosisAeriovenous fistulaDeep venous thrombosisPregnancy  <response>: Ans. A i.e. Superficial venous thrombosis Varicose veins Gold standard method of diagnosing VV: Duplex imaging Sclerosant used in VV: Ethanolamine oleate Test to demonstrate sapheno-femoral incompetence: Brodie-Trendelenburg test MC complication of stripping: Ecchymosis Cocket Doddss operation: Subfascial ligation 