An intrauterine device (IUD) is a small, plastic, T-shaped device that is inserted into the uterus to prevent pregnancy. IUDs contain copper or the hormone levonorgestrel (LNg). Plastic strings tied to the end of the IUD hang down through the opening of the uterus (cervix) into the vagina.
Current as of: May 29, 2019
Author: Healthwise Staff Sarah A. Marshall, MD - Family Medicine Adam Husney, MD - Family Medicine Kathleen Romito, MD - Family Medicine Rebecca S. Uranga, MD - Obstetrics and Gynecology
Medical Review:Sarah A. Marshall, MD - Family Medicine & Adam Husney, MD - Family Medicine & Kathleen Romito, MD - Family Medicine & Rebecca S. Uranga, MD - Obstetrics and Gynecology