Rob wrote, "A mom called me with what sounded like a blocked duct. She also
said she has having a watery leaking from the breast. Does this happen with
blocked ducts? Mom denied it looking white like thin fore milk."

This sounds like the spontaneous leaking that can be seen when there is
engorgement, and when (for whatever reason) the breasts have not been
drained thoroughly enough and/or frequently enough.  Like on Day 4
postpartum when the baby has never really breastfed effectively.  Or during
abrupt weaning.  The blocked duct could be a *consequence*, not a cause.
The milk seems to become more watery looking the longer the time interval
since the breast was drained.  Whenever I see that very watery milk I start
wondering what the baby is receiving, or whether he's receiving anything at all!

Pamela Morrison IBCLC, Zimbabwe