A T-shaped plastic or metal devise in placed inside the uterus at the openings of the Fallopian tubes and left there for an indefinite period of time.
There are inherent puncture risks when it's inserted, risk of infection, risk of it shifting, etc. Couple this with the fact that young teen girls ARE STILL GROWING and have hormonal issues that grown women do not.
It is only in the past few years that women who have not had children but plan to eventually have used IUDs. Nobody really knows if a girl who has had an IUD for a decade or so will be able to become pregnant; however, the left doesn't really care, this is about an agenda and nothing more.
Free love isn’t free.
Some of these girls are likely to end up heartbroken when they eventually try to become pregnant.