It is almost exactly in the middle of his forehead and I only just noticed it today. He was frowing at me and it looked odd so I ran my finger over his forehead and there is definatly a hard lump there.
He did bang his head in that exact spot about 2/3 weeks ago, when he fell forward off a bench onto the playground at school. Nothing was done to treat it ie no cold compress etc, as no one saw him do it, and it took the spanish inquesition to get out of him what he'd done, and he said he never even cried, but he had a lump and bruise for at least a week.
Would the hard lump under the skin be related to that ?