Question
Copper ions-releasing IUDs are more efficient than non-medicated methods. Why?
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Answer
IUDs induce phagocytosis of sperms and thus prevent conception. Non-medicated IUDs; like Lippes loop; work on this concept. However, copper ions-releasing IUDs give some add on benefits apart from the normal effect of IUDs. Copper ions suppress sperm motility. Thus, sperms are unable to reach the fallopian tube. In case of non-medicated IUDs, some sperms may be able to reach the fallopian tube and failure rate of IUDs can increase. Hence, copper ions-releasing IUDs are more efficient than non-medicated methods.
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