Intrauterine devices (iuds) are one of the most commonly used methods of reversible birth control for women. When inserted into a woman's uterus, an iud helps to prevent pregnancy, including tubal implantation and ectopic pregnancy. The copper iud is a very effective, long-term method of birth control; only eight women out of 1,000 using copper iuds will become pregnant during the first year of use.
Unlike iuds that contain hormones, the copper iud has no effect on breastfeeding. The copper, which is released by the iud, interrupts your normal reproductive cycle, causing the endometrium (the lining of the uterus) to shed more frequently than normal. The most common side effects of using a copper iud include cramping and an increased risk of anaemia due to irregular, heavy menstrual bleeding. Such bleeding among iud users is not usually considered a problem. In fact, it indicates that the device is working; however, it should be reported to your gp.
Research shows that with the copper iud, breastfeeding mothers experience less pain during insertion and have lower removal rates due to bleeding or pain than non-lactating women.
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