This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Primary Amenorrhea, Subject name: Gynaecology & Obstetrics
[{'content': 'Cry ptomenorrhoea true is - \nSelect and explain. \nA. Seen in cases of imperforate hymen, B. Hematocolpos is present, C. Retention of urine may be seen, D. All the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is \'d\' i.e., All the above Cryptomenorrhoeao Condition where the menstrual blood fails to come out of the genital tract due to obstruction in the passageo The commonest cause is congenital due to "imperforate hymen"o It can also be seen following cervical amputation, conization or deep cauterization.Pathophysiologyo Site of obstruction low down in vagina - hematocolpos - hematometra - hematosalpinx.o Hematocolpos produces elongation of the urethra and retention of urine.Managemento Cruciate incision in the hymen and drainage of blood in cases of imperforate hymen.', 'role': 'assistant'}]