What is an intrauterine device (IUD)?

Evelyn Minaya, MD
OBGYN (Obstetrics & Gynecology)
An intrauterine device (IUD) is a device placed inside the uterus to prevent pregnancy. In this video, OB/GYN specialist Evelyn Minaya, MD, describes the different types of IUDs, and how they actually work inside the body to prevent pregnancy.

The IUD is a small T-shaped object that is placed into the uterus by a provider. IUDs prevent sperm from reaching the egg or from implanting in the uterus. One type contains copper, and others contain progesterone. IUDs can remain in place for one, five, or ten years, depending on the type.

IUDs are generally recommended for women who have had one or more children. When properly inserted and retained, IUDs are 95–98% effective in preventing pregnancy.

Kevin W. Windom, MD
OBGYN (Obstetrics & Gynecology)

An intrauterine device (IUD) is a small T-shaped device that is placed inside the uterus for birth control. There are two IUDs in the market. There is a copper IUD called ParaGard and there is a hormonal IUD called Mirena.

Continue Learning about IUD (Intrauterine Device)

IUD (Intrauterine Device)

IUD (Intrauterine Device)

An intrauterine device (IUD) is a T-shaped birth control device made out of plastic or copper and placed inside the uterus by your OBGYN. IUDs work by causing inflammatory responses in the uterus that prevent sperm from moving eas...

ily to unite with an egg. IUDs are very effective (up to 98%) at preventing pregnancy, but will not prevent STDs.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.