The illustration shows the adnexa, part of the vagina and the uterus with an IUD. The intrauterine device is a contraceptive method that is placed inside the uterus by gynecologsts. The T-Shape is wrapped in copper wire and prevents (peal index 2) the implantation of the fertilized egg in the uterus. This method is mostly used by women who have already given birth. There are variants the utilize hormones instead of copper. A risk with IUDs is infection.