Hormonal Intrauterine Device (LNG-IUD)

Hormonal Intrauterine Device (LNG-IUD)

The hormonal IUD is long-acting reversible contraceptive method used by more than 150 million women worldwide. This method is the most effective birth control on the market. IUDs are small T-shaped device inserted by health care professionals in the uterus. The levonorgestrel intrauterine device (LNG-IUS) contains progestin to interfere with ovulation and prevent pregnancy.

How does it work?

  • The integrated small cylinder in the LNG-IUD contains levonorgestrel which is released progressively in the uterus. The uterus wall will become thinner as the cervical mucus thicker, making it difficult for sperm to reach uterus.
  • The intrauterine device is implanted in the uterus by a health care professional. It is a fairly simple in clinic procedure, taking only a few minutes where no anesthesia is necessary.
  • The devise can stay in place for 3 to 10 years before it needs to be replaced.


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  • Failure rate by actual use : 2 women over 1000 in the course of first year usage .
  • Failure rate by theoretical use : 2 women over 1000 in the course of first year usage .
  • Effective, reversible, and safe
  • Long term, discreet, and doesn’t need a reminder
  • Low Cost
  • Can be used by women allergic to estrogen
  • Can be used if breast-feeding
  • Decrease the risk of endometrial cancer
  • Minimal amount of hormones absorbed
  • Decrease menstrual cramps and menstrual flow
  • Regularization of menstrual cycle
  • Reduces endometriosis symptoms
  • Light and irregular bleeding when the device is first used
  • Pain or discomfort at the insertion
  • Infection, perforation, or the expulsion of the IUD can consist of some of the rare usage risk.
  • Does not protect against STIs
  • Some women can the following hormonal side effect : acne, headache, breast sensitivity, mood swing, unwanted facial and body hair growth
  • Irregular, light, or absence of periods which can be an advantage to some.