we found a smallish bruise on my 3 wk-old baby's arm a couple of days ago, but i thought it was from swaddling her too tightly but today baby showed us where it came from: she sucked on her own arm so hard that it was enough to make a bruise! arck! i knew her suction was strong (the force is strong in this one) but i had no idea it was THAT strong! my poor nipples! lol!
but seriously, should i be concerned? the bruise is healing but it sure doesn't look very pretty. any parents can share their experience?