This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Natural Methods, Barrier Methods, IUDs, OCPs, Subject name: Social & Preventive Medicine
In a woman using an intrauterine contraceptive device (IUCD) an intrauterine pregnancy occurs and the IUCD threads are visible. What is the reason to recommend removal of the device? 
Select and explain. 
A. To prevent the risk of subsequent septic aboion and preterm labor, B. To prevent congenital abnormality of the newborn, C. To prevent post-paum haemorrhage, D. To prevent perforation
A: To prevent the risk of subsequent septic aboion and preterm labor
Answer: A: To prevent the risk of subsequent septic aboion and preterm labor 
Explanation: - There is no teratogenic risk with a retained IUCD. - However, there may be an increased risk of infection and preterm labour. - Hence, it is recommend to remove the device.