In patients aged between 17 and 25 years, the difference is quite significant, with an index of 5.6% in TCu-380A users, and 0.3% in LNG-IUS users (C). 39 In conclusion, the risk of developing pelvic inflammatory disease associated with IUDs is quite low and related to the moment of insertion (B). 40 LNG-IUS and Perforations Perforations are rare complications occurring in 1.3 times per 1,000 insertions.
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