I have an IUD it's been in for over a year and recently instead of a period I have a pasty pink discharge. No odor but I have back and leg pains?

Pelvic infection? As always, I try to think: "what is the most serious condition associated with these symptoms? " I have to assume that the pink discharge is bleeding. And back and leg pains can be symptoms associated with pelvic inflammatory disease. This is, of course, treatable. But you must be examined to be certain what's going on. Good luck. Lgromkomd.