How big is an IUD?

An intrauterine device (IUD) is typically about the size of a small T or letter "T," measuring around 1.5 to 2 inches in length and 1 inch wide. It is designed to be inserted into the uterus and remains there to provide long-term contraception, usually for several years, depending on the type. The exact dimensions can vary slightly depending on the specific brand and model of the IUD.