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: Social & Preventive Medicine
The most common side effect of IUD inseion, which requires its removal is - 
Select and explain. 
A. Bleeding, B. Pain, C. Pelvic infection, D. Ectopic pregnancy
B: Pain
Answer: B: Pain 
Explanation: Ans. is 'b' i.e., Pain IUCD o Most common side effect Bleeding o Most common side effect requiring removal of the device Pain