I have personal experience with "milk-leg", which is indeed thrombophlebitis. In 1968, about ten days after the birth of my first daughter, my leg suddenly became VERY swollen and very painful. Walking was impossible. I was told by the physicians at the military hospital that this meant a blood clot in a deep vein and that it could be a very serious problem if not treated. Treatment at that time consisted of hospitalization and intravenous administration of blood thinners-either heparin or coumadin(sp). I had been breastfeeding against all odds. (After my daughter's birth I was the only mother in the ward or 6 women who was breastfeeding, and after we were permitted to pick up our babies to feed them, the curtains were drawn around me to separate me from the other mothers). I was the only woman on the navy base breastfeeding her baby! Three weeks later the swelling and pain became even more severe, so I agreed to treatment. And babies were not permitted to visit patients in the hospital. Of course, I weaned. It was unneccessary to wean, but no one had any information to provide me and what did I know? Incidently, while the treatment provided good results, I felt the effects in my leg for 8 years. It would swell with increased exercise, and sometimes was painful during severe barometric pressure changes. I was able to hear many stories about milk-leg from my mother's generation. The physicians attributed it to a complication of either childbirth or the early version of the bc pill. Thanks everyone, for sharing your expertise on the Lactnet. I'm hooked! I sneak to the computer when I can't sleep at night! Karen Koss