<prompt> Surgery in varicose veins is NOT attempted in presence of -Deep vein thrombosisVaricose veins with leg ulcersPresence of multiple incompetent perforatorsAll the above  <response>: Deep vein thrombosis is a contraindication for tt of varicose veins. Varicose vein surgery should never be attempted in a case where deep vein thrombosis exists along with varicose veins, because in these cases superficial veins are the only valved venous pathway and excising them will only aggravate the condition. Ref : Bailey Love 25e p930 