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: Gynaecology & Obstetrics
[{'content': 'The following are the contraindications of tubal reconstructive surgery except \nSelect and explain. \nA. Length of tube <4 cms, B. Patients over 30 years of age, C. Pelvic tuberculosis, D. Reversal done after 5 years of sterilization', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tubal reconstruction surgery can be done for a number of reasons including for reversal of sterilisation procedure. The most favourable outcome is seen when it is done for reversal of sterilisation procedures.\nFactors for Poor Outcome Following Tuboplasty\n• Dense pelvic adhesions.\n• Loss of fimbriae.\n• Bilateral hydrosalpinx > 3 cm.\n• Length of the reconstructed tube < 4 cm.\n• Reversal done after 5 years of sterilization operation.\n• Presence of other factors for infertility.', 'role': 'assistant'}]