Elisa,
Perhaps my nursing background takes the lead here, but I do use gloves when
assessing mom's breasts, baby's mouth, and when handling milk or pump parts.
 I make sure, though, that the mom understands that their use is mainly for
the protection of mom and baby, since hospitals are high sources of germs.
 In my private practice, I do the same.  In my thinking, its better to be
over-protective than not.  The same goes with hand-washing, which I do upon
entering and before exiting the mom's hospital room.  Moms and other family
members seem to appreciate this, especially when they see other health care
professionals NOT doing it!!

Kathy Parkes, RN, IBCLC
San Antonio, TX