Expulsion From 1.2 to 7.1 percent of IUDs are partially or completely expelled from the uterus in the first year, especially in the first few months after insertion. One out of five expulsions goes unnoticed. Expulsion is more likely among younger women and women who have never had a baby. In one to three out of 1,000 insertions, the uterus is accidentally punctured. This is usually discovered and corrected right away.
Some women discover it has happened only after becoming pregnant.
The removal is usually performed with a laparoscope through a tiny incision below the navel. Infection Even though the inserter is sterilized before use, it can push bacteria that are naturally found in the vagina into the uterus. Women using IUDs are more likely to develop a pelvic infection during the four months following insertion. After that time, if a woman and her partner have sex only with each other, there is no greater risk of infection than for women not using birth control. A mild infection usually clears up with antibiotics without having the IUD removed.