Amy:

 if baby is happy and  healthy why the concern... could be papilomas...they
split off and bleed.,,,, not fatal or harmfull.  they happen maybe mroe than
we know,.. in a formula stool no one ( without testing) would know the baby
is bleeding...

  the ped/gastr is marelle vonlanthen... you may be able to find her in the
archives.

           Patricia