Thanks girls. I've been thinking of it so much and was even wondering if the baby massage I have been doing is too firm? But then he'd be getting bruised all over? And dh and I are the only ones who really handle him and we are gentle so I can't even say that it's from being passed around to lots of different people. I can't even remember if we asked the pediatrician about it? One of the health nurses suggested that it could end up being a birth mark? Gosh I hope not. I'm not a huge fan of GP's but the one I saw a few weeks ago was pretty good so I'll book him in and ask the health nurse tomorrow as we have our parents group on at the community health center.