My 4 month old boy has an indentation running across the top of his head. is this normal and will it eventually even out as he gets older?

Mgt: The indentation should be further evaluated. The head circumference and growth chart, along with a photo of the area, may be uploaded for an inbox consultation. His birth history may also be reviewed for a second opinion at that time. One possible cause may be the growth of the skull. There are suture lines which need to aligh during this process.