Having gotten music all over the blog, I am now going to cover it with human blood. Intrauterine devices, whether copper only or with a progestogen-releasing cylinder, are actually the most common form of reversible birth control in the world. Most of the users are in China, however (2/3 according to Wikipedia). In the U.S., IUDs suffered a fatal blow to their reputation when the defective Dalkon Shield was released, causing at least 7 deaths and many septic abortions. It was pulled from the market in 1974, but the damage was done; as a girl I was never even informed about IUDs as a method of birth control.
That wasn’t totally unreasonable because they are less effective for women who have never given birth vaginally, being more likely to be expelled. I think there was also a misguided consensus that you couldn’t dilate a woman’s cervix enough to insert the device unless she had previously given birth. Today, as I understand it, manufacturers produce a smaller size to solve this problem.
I was on the pill for about 10 years. I always had trouble with it, experiencing breakthrough bleeding (basically you get your period twice a month, no thank you) and other various side effects including, in my opinion, exacerbation of depression. I got switched around to more types than I can remember in an attempt to find one that was acceptable.
Here’s what’s great about the copper IUD: no hormones! The copper makes your womb inhospitable to a fertilized egg, for reasons that I think are still somewhat unknown. So, maybe an egg is fertilized, but it can’t attach itself and begin appropriating resources to build a placenta. I’m not sure whether this counts as baby-killing to the anti-abortion crowd; probably yes, even though the definition of getting pregnant involves a fertilized egg implanting itself in your uterus. Not just, you know, hanging around briefly. (Do these people really think when they go to heaven they will be vastly outnumbered by the souls of fertilized eggs who failed to implant and were washed away during menses? That’s going to be some boring conversation right there. Will those little dudes be casting down their teeny, tiny golden crowns around the glassy sea? I call bullshit; I don’t think anti-abortion people believe that at all.)
Insertion of the device does hurt. It only takes a few seconds, though, and then you don’t have to do anything about it for several years. The main reason women have the device removed it that it causes heavier bleeding during their period. My experience was that this was (dramatically!) true at first, but that my body then adjusted.
Obviously the IUD does nothing to protect you from STDs. But it’s not competing with condoms in this area, it’s competing with the pill. Pregnancy rates are lower when using IUDs than when being on the pill, probably because it’s very difficult to be a perfect pill user. Guys may think it sounds easy: you take one a day, end of story. But sometimes you forget if you’ve taken it or not; actions repeated so frequently have a tendency to blur together. Or you end up staying out super-late and crashing at your friend’s place. In theory you’re meant to add condoms to the mix at that point until you start taking a new set, but in real life people often don’t bother. Part of the appeal of the IUD is that you don’t have to do anything.
My only jealousy now is of the new pills where you only get your period 4 times a year. That would be great! Let’s face it: getting your period is a pain. There’s blood everywhere! Who needs it? It’s true that it can be the most welcome sight in all the world, when you have been sitting there thinking you might be pregnant, and wondering what the hell to do about it. And suddenly these is a cadmium red solution to all your problems. Otherwise: lame. So, ladies, IUDs are great and you should consider them.
UPDATES: One commenter notes that although we don’t know how the IUD works, it seems to work primarily by inhibiting fertilization, and only secondarily by preventing implantation. So we all win, including the little dudes with the tiny crowns. Another commenter who survived a pregnancy while his/her mother was using an IUD wants me to point out that this is a possibility, and that grave birth defects can result. This is true, and something my doctor mentioned to me. The failure rate is incredibly low, but if the IUD does fail the consequences can be very serious for the developing fetus (if not fatal before the fetus is viable outside the womb, which is more likely).