The 18-year-old lifts his curly brown hair to flash a long, red scar on the right side of his head, above his ear, where a piece of his skull is gone. The missing bone fragment has left a dent in ...

A dent in the head often looks like a depression or irregular spot in your skull. It doesn't always cause symptoms and may develop over time; for example, cranial sutures (seams) that close up the ...