I have suspected endometriosis (currently on waiting list and is taking forever) and have had the mirena IUD. Sex was sometimes uncomfortable before the coil as expected with endo but since getting my IUD 2 years ago sex has got increasingly painful on occasions. I didn't think it had anything to do with my IUD I just thought my endo was getting worse but my partner pointed out it started getting worse right around getting my IUD. Everything else with it has been unproblematic and I feel I really rely on it making my periods lighter enough to be bareable. Has anyone else has similar problems? Do you think its my IUD is the actual cause?