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
The presentation of Asherman syndrome typically involves 
Select and explain. 
A. Hypomenorrhea, B. Oligomenorrhea, C. Menorrhagia, D. Metrorrhagia
A: Hypomenorrhea
Answer: A: Hypomenorrhea 
Explanation: Ovulation is not affected in Asherman syndrome. Because of the decreased amount of functional endometrium, progressive hypomenorrhea (lighter menstrual flow) or amenorrhea is common. The best diagnostic study is the hysterosalpingogram under fluoroscopy. Hysteroscopy with lysis of adhesions is the treatment of choice. Prophylactic antibiotics may improve success rates.