This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Physiology & Histology, Subject name: Gynaecology & Obstetrics
[{'content': 'A 20-year-old woman gives a history of sharp pain in the lower abdomen for 2-3 days every month approximately 2 weeks before the menses. The most probable etiology for her pain is: \nSelect and explain. \nA. Endometriosis, B. Dysmenorrhea, C. Pelvic tuberculosis, D. Mittelschmerz syndrome', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is d, i.e. Mittelschmerz syndromeRef: Dutta Gynae 4th/ed, p172, 5th/ed, p178* A female giving history of sharp pain in lower abdomen, every month, 2 weeks before the menstruation suggests mittelschmerz as the diagnosis.* Mittelschmerz is synonymous to painful ovulation. Pain is associated with rupture of ovarian follicle at the time of ovulation.', 'role': 'assistant'}]