Levonorgestrel-releasing IUD as a method of contraception with therapeutic properties

T Luukkainen, J Toivonen


The levonorgestrel-releasing intrauterine device LNg IUD is a new contraceptive method that combines the advantages of both hormonal and intrauterine contraception. It gives users non-contraceptive health benefits and can also be used as an effective therapy for menorrhagia. The local release of LNg within the endometrial cavity results in strong suppression of endometrial growth as the endometrium becomes insensitive to ovarian estradiol. The endometrial suppression is the reason for a significant reduction of menstrual blood loss or amenorrhea, and for the disappearance of dysmenorrhea. The bleeding pattern during the use of the LNg IUD is characterized by reduction of the blood loss and in the number of bleeding days per cycle. During the first two to three months of use, however, irregular spotting is common. The removal of the device results in a quick return of menstrual bleeding and fertility. The failure rate of copper-releasing IUDs, as with other methods of fertility regulation, is higher in young women and decreases with age. The LNg IUD, on the other hand, has the same low pregnancy rate in every age group of the users. The LNg IUD also gives protection against ectopic pregnancy and pelvic inflammatory disease and, ...Continue Reading


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