This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological Disorders in Obs., Subject name: Gynaecology & Obstetrics
[{'content': 'A lady with 10-12 weeks pregnancy develops acute retention of urine. The likely cause is: \nSelect and explain. \nA. Retroverted uterus, B. Urinary tract infection, C. Prolapse uterus, D. Fibroid', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a, i.e. Retroverted uterusRef. Dutta Obs. 7/e, p 311, 312, Jeffcotes Gynae Combination 7/e, p 493Well friends amongst the options given UTI and prolapse of uterus- cause increased frequency of urination and not retention.So we are left with 2 options - fibroid and irritability uterus.Intrauterine fibroid commonly causes bladder irritability due to its weight leading to diurnal frequency.Retroverted uterus: It is common during pregnancy and can lead to retention between 12 and 16 weeks. It is the best answer.', 'role': 'assistant'}]