Medically reviewed by Renita White, MD An intrauterine device (IUD) is a small, T-shaped device that’s placed inside the ...

Once a healthcare provider inserts the T-shaped device into the uterus, it works continuously for three to 10 years, ...

Non-hormonal IUDs Non-hormonal IUDs are made of copper and do not contain hormones. They can prevent pregnancy for up to 10 years after insertion. The presence of copper works to prevent pregnancy ...

Both copper and hormonal IUDs are more effective at preventing ... Paragard IUDs can last for up to 10 years, but they can be removed at any time. They are also effective immediately after ...

lasting for five years or more. In general, there are two types of IUD: the hormonal IUD and the copper IUD. While hormonal IUDs release progestin, which thickens cervical mucus and thins the ...