Gee what was I thinking... Off topic.

[Irulan]

I'm going to have to do some research. I recall the IUD acting as basically this floater that bumps into the egg and knocks it off the lining before it can get very far. Is that at all accurate?

What is the insertion and removal process? How long can you leave them in?

it irritates the uterine lining to prevent implantation. You can leave them in for years with the caveats that Doc stated: single partner, no STD's etc. There are some versions that release progesterone. It is inserted when you are mensrtuating.

http://www.fwhc.org/birth-control/iudinfo.htm has some good general information.

Irulan