I have only my personal experience to share. I had an incensional biopsy 2.5 years ago when my youngest had just turned one and was nursing quite a bit more than this little one. The surgeon did not suggest that a stop nursing and was perfectly find with me nursing on both breasts as soon as I was conscious (he also reeducated the pre-op nurse who was telling me I would need to pump and dump for some period of time I can't remember). The anesthesiologist he worked with was fine with this plan. All of that being said - he had never operated on a lactating breast and despite asking here and digging around in the 3 day period I had before the surgery I also could find very little information. He suggested that perhaps I might not want to nurse on the affected breast - but did not insist. I learned shortly after the surgery that some doctors will put in a shunt instead of closing the wound completely to avoid the complications that I experienced. Knowing that my memory of exact details may be faulty I searched for my previous post on lactnet on the subject. This is from March of 2005: "This is very similar to my own personal recent experience. I nursed on the breast immediately following surgery (the incision was about 1" above the areola) and for the first 24 hrs. I stopped nursing on the affected breast for about 3 days and since have returned to nursing. My son is now 14 months old and nurses probably a dozen or more times during the day/ night. I have yet to find any research on it [partial breast involution] and believe that non currently exists, though I would love to see some! By about 2 weeks out the area had settled into a non-painful, but quite visible "lump" of milk that has not changed in the last 6 weeks. I am at a loss as to when full involution of the area will occur, but do hope it happens before swimsuit season ;-). I am also curious as to how the area will respond to possible future pregnancy." To follow up with that - not terribly long after I posted the site did become infected and we had to lance "lump". Following the lance and drain the area around the incision took on a "weaned" appearance and the milk pool did not reoccur. That breast also continued to be smaller than the other. I am currently 30 weeks pregnant and both breasts and all areas look quite similar. I will be interested to see how the area responds to lactogenisis II. Jessica Mattingly M.Ed., CCE, LLLL, IBCLC Kansas City, MO *********************************************** Archives: http://community.lsoft.com/archives/LACTNET.html Mail all commands to [log in to unmask] To temporarily stop your subscription: set lactnet nomail To start it again: set lactnet mail (or [log in to unmask]) To unsubscribe: unsubscribe lactnet or ([log in to unmask]) To reach list owners: [log in to unmask]