These Are the Most Common Side Effects of an IUD
Before Getting an IUD, Read What a Doctor Has to Say About the Potential Side Effects
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With a hormonal IUD, Dr. Pineiro said, the most common side effect is irregular spotting. Your period flow might lighten, and for about 20 percent of women, Dr. Pineiro said, it can go away altogether (a nice side effect!). Even in that case, you may still experience occasional spotting.
Because Mirena, Skyla, Kyleena, and Liletta all use hormones, some other side effects might crop up as well. These can include: