Copper coil (IUD) and lower back pain

The only down fall is low iron this has caused debilitating fatigue, so be prepare to have to maybe take iron supplements

I got the Kyleena coil fitted in Jan 2025 - just for reference I am a 5"3 23yr old without ever given birth - the insertion was very uncomfortable but not the worst ever, I did it with my sexual health clinic as I find they are more patient and kind rather than a quick GP / hosp appointment. My 11 months with the coil were overall great, except extreme contraction like pain and very occasional periods that would either last hours or a day. I didn't bleed every month but would get the odd few days of a period, quite unpredictable. I got a scan in July time just to make sure it was in the right place due to the amount of pain I was getting, and was all fine. In November 2025 I suddenly got excruciating pain and was told the coil has moved (perhaps explains the contraction pain throughout the year, I presume my body was rejecting it). Thankfully I pushed for another scan otherwise I would've kept having unprotected sex lol. Despite all the above, I am getting another one fitted because it is a trusty bit of contraception - just be aware if you experience a lot of pain in the lower tummy, to get it checked out!!

As the copper IUD gets so much negative press I wanted to post my genuine positive experience. Initially I was apprehensive to get the coil after hearing so much fear mongering, and so many users saying they had major cramping (perhaps some did), but this wasn't the case for me. I experienced the worst period cramps that I have ever had within the first 7-10 days post-insertion, but it was manageable with ibuprofen + heating pad. Once I got through those initial days it practically subsided (apart from the slight numbness around my cervix from the procedure which healed around the month marker so I recommend taking any kind of sex slowly to avoid worsening it). Between days 10 and my first period I had occasional mild cramps here and there, but after that first period the cramps completely subsided. Fast forward to month 6 I can confidently say that the cramps only occur at normal times of the month (just before or the first days of your period) just slightly more painful but not unbearable. When it came to bleeding side-effects in the first 3 months I never got any spotting between periods and my period came on time but was heavier than usual (more bleeding but the same number of days as without an IUD). However after that 3 month marker I remember the bleeding becoming lighter, to the point now where it is similar if not the same as the amount pre-IUD. In conclusion the IUD has worked great for me, and I barely even notice it now. If you can do visit a sexual health clinic over a GP surgery, as they seem to be more experienced. Please don't let peoples bad experiences put you off, I strongly believe that for 99% of IUD users the bad experiences are based upon people noticing the fine details with their body that perhaps was there before but now that they have the IUD they become a 'worrier'. That every little cramp means something bad. I say that if you have an issue, go and see a professional who's qualified and not ask the internet.