Kris, I have had doctors tell me strange things about how I would harm my health or the health of the toddler because of long term nursing. I have also had to help mothers in this situation. I have never heard of any connection between lactation ammenohrea and any kind of cancer-uterine or other wise. I suggest you do what I have done-next time it comes up have the mother tell the doctor that she is very interested and would like to know where she can obtain this informaton so she can read more about it. Chances are there isn't ant such information. And if there is, at least youa and she can make some educated decisions about the validity and creadibility of the information. (I was told that nursing my 2 year old daughter while pregnant with my second child would cause her to have vaginal bleeding from the placental hormones! Well, she did have vaginal bleeding all right-when she was 13 years old and hadn't nursed for a LONG time!) Nancy Sherwood IBCLC Perth, Australia