This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Varicose Veins, Subject name: Surgery
Contraindication for surgery in varicose veins - 
Select and explain. 
A. DVT, B. Multiple incompetent perforators, C. Ulcer at ankle, D. None
A: DVT
Answer: A: DVT 
Explanation: Ans. is 'a' i.e., DVT o Deep vein thrombosis is a contraindication for t/t of varicose veins.o 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.