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
Metrorrhagia is 
Select and explain. 
A. Heavy menstrual bleeding, B. Intermenstrual bleeding, C. Break through bleeding, D. Post coital bleeding
B: Intermenstrual bleeding
Answer: B: Intermenstrual bleeding 
Explanation: The term intermenstrual bleeding is updated nomenclature for metrorrhagia.