What types of IUDs are there?

Expert answer:

The IUD (Intra Uterine Device) is a contraceptive device, inserted into the woman's uterus by a gynecologist. There are two categories, with different functions:

  • IUDs not medicated (or inert) - do not contain or release active substances: They are made of plastic (polyethylene) or stainless steel. For example, the "Lippes handle" is made of plastic. This IUD model is not currently used; however, women who already use it can continue to use it until 6 months after menopause, when it should be withdrawn.
  • IUDs medicated (or active) - in addition to polyethylene or stainless steel matrix, contain substances (metals such as copper or hormones such as progesterone) that exert local biochemical action, increasing contraceptive efficacy. Among the medicated IUDs, those that are most used are those with copper or progesterone. The copper model is made of plastic, with copper filaments wrapped around its stems. The model with hormone is plastic and the vertical rod is surrounded by a capsule that continuously releases small amounts of levonorgestrel. The LNG-20 Intrauterine System (Mirena) is part of this type of IUD.

If you wish to use the IUD as a contraceptive method, consult your gynecologist. He is the most suitable professional to remedy all your doubts and to insert you.