Performance of the copper T-380A intrauterine device in breastfeeding women.

The effect of breastfeeding on performance of the TCu-380A IUD was evaluated using data derived from multicenter clinical trials. Insertion events for breastfeeding women (N = 559) and non-breastfeeding women (N = 590) were compared as well as discontinuations of IUD use through six months following insertion. Results indicate that breastfeeding women inserted with a TCu-380A are more likely than non-breastfeeding women to have a smooth, pain-free insertion, few postinsertion bleeding and pain problems, and a high rate of continuation of IUD use. There were no uterine perforations reported from either group of women.