This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
[{'content': 'A boy with undescended testis, your concern to ask for operation is due to –a) Cosmetic reasonsb) Infertilityc) Risk of malignancyd) Impotence \nSelect and explain. \nA. a, B. c, C. ac, D. bc', 'role': 'user'}, {'content': "Answer: D \nExplanation: Let's see both options one by one.\n1. Infertility\n\nInfertility is a complication of undescended testis.\nAfter treatment for a unilateral undescended testis, 85% of patients are fertile.\nFollowing bilateral aorchidopexy 50-65% of patients are fertile.\n\n2. Malignancy\n\nRisk of developing germ cell tumors in an undescended testis is 4 to 5 times higher than that in general population.\nThe most common tumor developing is seminoma.\nWhether orchidopexy reduces the risk of developing cancer of the testis is controversial, but it is uncommon for the testicular tumor to occur after orchidopexy performed before the age of 2 years.\n\nNote : If you will have to chose one option, go ahead with infertility.", 'role': 'assistant'}]