Contraception
What is the difference between a copper IUD and a hormonal IUD?
The Copper IUD does not include any hormones and works by using the properties of copper to affect sperm motility and egg survival. This lowers the chance of successful implantation of a fertilised egg. In comparison, the Hormonal IUD, contains a small amount of progestogen that is released directly into the reproductive system. Usually, only trace amounts of hormones make it into the bloodstream. These hormones cause the mucus of the cervix to thicken, which prevents the sperm from entering the uterus to fertilise the egg. It also thins the uterine lining to reduce the chances of successful implantation of a fertilised egg, and reduces the chances of ovulation. Since it reduces the amount of blood flow it is also a good treatment for heavy menstrual bleeding. By contrast the copper IUD can cause heavier blood loss during menstruation.
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More Contraception Q&A
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What is a contraceptive sponge?
What do I do if I vomit the first time I take my contraceptive pill?
Is there a chance of pregnancy if my girlfriend and I engaged in oral sex, I ejaculated in her mouth, we kissed, and then I used my saliva as a lubricant to finger her while she is ovulating?
Do I need to take the morning after pill if I had unprotected sex on the 1st day of my period?
What is the difference between combined pill and progesterone only pill?
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