I have seen babies be bald in spots from laying on the same side all the time, I have even seen babies hair thin but my poor baby boy who is just about 3 months now is balding. His hair, which was full, thick and black just a week ago is coming out in gobs and he is completely bald on top now. He looks like an old man with hair on sides and back but not on top. However even that hair is falling out. Has anybody ever seen this and is it something i should be worried about? My pediatrician says no but it doesn't seem right.