"i have been using the mirena for almost 5 years. before starting it, i had problems with low iron due to heavy bleeding. at one point, my ferritin level was 4. with the use of iron supplements i got it up to 30. after using the mirena for a few years, my ferritin is now over 80. i have almost no bleeding--usually i menstruate around every 34-35 days, but it&#039;s so light i don&#039;t need any liners. i had very little discomfort with the insertion. i will be getting a second one inserted in december. after that, i may be through menopause, since i am now 46. it&#039;s great. i highly recommend it."