Many women, however, adapt easily to the IUD after some initial discomfort. 可是,许多女性在某些初发的不适过去以后,很容易适应宫内避孕器。
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,宫内避孕器可能导致严重的痛经和出血,有些从未生育过的妇女尤甚。