Many women, however, adapt easily to the IUD after some initial discomfort. 可是，許多女性在某些初發的不適過去以後，很容易適應宮內避孕器。
In certain cases, particularly if the woman has not yet had any children, the IUD may cause severe cramps and bleeding. 在有些病例，宮內避孕器可能導致嚴重的痛經和出血，有些從未生育過的婦女尤甚。
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