Some health care providers refuse to give young women or women without children an IUD for fear of STIs and PID. Science tells us that this is just plain wrong: women can safely use an IUD regardless of age or how many babies they’ve had.
Sometimes old ideas die hard. One good example is the old idea that you have to start taking the pill on a Sunday, or start it five days after your period begins. Research has shown that this is just plain wrong.