Intrauterine System (IUS)

Hormonal Coil

An Intrauterine System (IUS) is a type of intrauterine device (IUD) that releases hormones to prevent pregnancy. The IUS is a small, T-shaped device that is inserted into the uterus to prevent pregnancy. Unlike a copper IUD, an IUS contains hormones (Progestin) that are released into the uterus to prevent pregnancy.

The IUS works by thickening the cervical mucus, which blocks sperm from reaching the egg, and by preventing ovulation (the release of an egg from the ovary). The IUS also causes changes in the endometrial lining, which make it more difficult for a fertilized egg to implant in the uterus.

To use an IUS, a healthcare professional inserts the device into the uterus through the cervix. The IUS is left in place for a specified period of time, usually 3 to 5 years, depending on the type of IUS. The IUS can be removed at any time by a healthcare provider if you want to become pregnant or if you experiences any adverse side effects.

IUSs are highly effective at preventing pregnancy, and they do not require daily attention like other forms of contraception. However, it is important to remember that IUSs do not protect against STIs, so it is important to use a barrier method, such as a condom, to reduce the risk of STI transmission.

Common side effects of IUSs include:

• Irregular bleeding or spotting
• Cramping
• Backache

It is important to talk to a healthcare professional about the risks and benefits of an IUS, and to discuss any health conditions or medications that may affect its use.