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

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