An Intrauterine Device, also known as an IUD, is a little, t-shaped piece of plastic that is inserted into the uterus and can remain there for up to 5 or 10 years, depending on which one you get. For example, Paragard®, a hormone-free copper IUD, is good for 10 years; and Mirena®, a hormonal non-copper IUD, is good for up to 5 years. IUDs are birth control options that may help reduce PMS symptoms. Also, menstruation may become lighter with fewer cramps, or it may stop completely.
Hormonal IUDs, like Mirena, Liletta and Skyla, are birth control options that release levonorgestrel, which is a progestin hormone.