Small instrument: An iud folds up for insertion, so the cervix does not have to be dilated very wide (only about 3-4mm). In some women who have given birth before, it is sometimes not even necessary to dilate the cervix to get the iud properly placed. If dilation is needed, a small, sterile instrument with a rounded tip is used; sometimes injecting a local anesthetic is sufficient to relax the cervix open enough.
Answered 12/12/2019
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