"i&#039;m 21 and i have had mrena for about 7 months now.  unfortunately i haven&#039;t had good results. i now have my period 2 times a month, and if i&#039;m not on my period, i have a yeast infection. my doctor did cultures and test and couldn&#039;t figure out why the infections were coming. my guess is the mirena because that&#039;s when it started. i&#039;m scheduled to get it taken out."