iud been around since bc, as much as we want it off the market it can be used for other things just not for healthy women. birth control pills are given to women to fix irregular bleeding, well it dont fix it , it just changes the bleeding. iuds are given to women to carve out the endometrosis, it should not be used as a birth control. in china the doctor sews the iud inside the uterus to keep it from falling out. i just read it online. i cant believe what women go though because men will not get a vasectomy.