Which side effects can a coil cause?
The side effects you might experience on the coil depend on whether you are using the copper coil (IUD) or the hormonal coil (IUS).
Side effects of the IUD (copper coil)
The IUD can cause changes in your periods, with some women experiencing longer or heavier periods. In some cases, women also find that their periods become more painful. Often, these side effects improve after the first few months as your body gets used to the coil.
Side effects of the IUS (hormone coil)
As with the IUD, the IUS can have an impact on your periods. Some women complain about heavier periods while using a hormonal coil. However, it is also possible that your periods stop entirely or become irregular.
The Mirena (hormonal) coil often causes irregular periods during the first 2–3 months. After that, most women find that their periods become lighter or stop completely. If you are worried about having heavy periods, the Mirena coil may be a suitable option for you.
As the IUS works by releasing progesterone, some women also experience side effects such as headaches, acne or breast tenderness.