I have had the Mirena coil for years. I also have PCOS which can cause weight problems. I have started to think that I became overweight shortly after having my first mirena fitted. I'm not sure if I am kidding myself though and pinning the blame on that. I'm happy with the Mirena otherwise, I have no periods etc.
I'm considering trying the copper coil but am concerned about heavy bleeding as currently have none.
Has anyone genuinely thought their weight gain was the result of the Mirena and lost any weight after having it removed?