IUD

An intrauterine device (IUD) is a small, T-shaped plastic and metal object inserted into the uterus by a healthcare provider to prevent pregnancy. It works mainly by releasing substances or creating an environment that makes it difficult for sperm to reach or fertilize an egg. There are two types: hormonal IUDs, which release progestin to thicken cervical mucus and thin the uterine lining, and copper IUDs, which release copper ions that are toxic to sperm. IUDs are highly effective, long-lasting (3 to 10 years depending on the type), and reversible.