This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
M/c cause of APH is 
Select and explain. 
A. Placenta pre, B. Abruptio placenta, C. Vasa pre, D. Placenta accreta
B: Abruptio placenta
Answer: B: Abruptio placenta 
Explanation: Abruptio placenta is defined as the haemorrhage occurring in pregnancy due to separation of a normally situated placenta.It is also called accidental haemorrhage or premature separation of placenta (refer pgno:133 sheila textbook of obstetrics 2 nd edition)