Intrauterine System (IUS)

99% effective
 

Description

The IUS is a small plastic device that releases the hormone progesterone when it is put into the womb.

How it Works

It works in several different ways - by stopping the sperm from meeting the egg, by delaying the egg getting to the womb, or by preventing the egg from implanting in the womb.

Advantages

• Does not interrupt sex
• Works as soon as it is inserted
• Can stay in for five years
• Suitable for women who have completed their family

Drawbacks

• Certain medication can interfere with its effectiveness. In this instance another method of contraception would have to be used.
• May cause irregular bleeding for the first few months
• Insertion and removal must be done by a specially trained doctor
• Does not protect against sexually transmitted infections