I have an appointment this week to get a Mirena fitted. It was recommended because I have low iron, and have bad peri menopausal symptoms. I have been told that it helps mood swings, you bleed less which is good for low iron and is a slow release progesterone that helps balance out the oestrogen levels. I have been recommended HRT hormones before to tone down the hot flushes and mood swings but have refused to go there so I guess the doctor felt this was a good thing for me. I don't need it for contraceptive reasons either. Gosh after reading all this I will be ringing on Monday to cancel my appointment. Never felt good about having a foreign device in my body. Thank you all for your honesty.