Can it hurt when they insert an iud?

There is discomfort: I have placed a lot of iuds and there is a lot of variation in what women feel. Most women who have had vaginal births have a cervix that is more open, and most feel mild to moderate discomfort only. Women who haven't had a vaginal birth tend to have moderate pain, mostly because the cervix isn't as open. I recommend a woman take Ibuprofen prior to iud. The discomfort is just with insertion.