Hormonal intrauterine devices (IUDs) are small, T-shaped devices inserted into the uterus. They release progestin, which thickens cervical mucus, inhibits sperm movement, and thins the uterine lining. Examples include Mirena, Kyleena, and Skyla. Hormonal IUDs can provide long-term contraception for 3-5 years depending on the type.
