<prompt> Which among the following is the most common side effect of IUD inseion?BleedingUterine perforationPelvic infectionEctopic pregnancy  <response>: The most common side effects repoed by IUD users are cramping and bleeding. These symptoms can be minimized with the use of a nonsteroidal anti-inflammatory drug. However, if symptoms are persistent or severe the patient should be evaluated for infection or perforation. Other side effects are dysmenorrhea, expulsion, or uterine perforation. Ref: Brunsell S.C. 2011. Chapter 17. Contraception. In J.E. South-Paul, S.C. Matheny, E.L. Lewis Eds, CURRENT Diagnosis Treatment in Family Medicine, 3e. 