I have personal experience with this as I have endo and bf 2 children.... the endo will not grow as long as she is not having her period and most women experience much less endo pain during bf , so tell mom to keep bf and dont go on the estrogen, e mail me private if you need more info. Cindy -- ^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^ Cindy Curtis , RN, IBCLC ~ Virginia , USA ICQ # 412812 mailto:[log in to unmask] Benefits of Breastfeeding Home Page http://www.erols.com/cindyrn