An M-shaped forehead is a forehead with a distinct M-shaped hairline, often accompanied by two sunken temples and a slightly raised forehead peak. Viewed from the front, the forehead forms 3 peaks - with the middle point (center) higher than the two sides. This forehead shape is more common in: Men than women People with high, wide foreheads and clearly shaped hairlines People with angular faces and strong personalities This is not a medical or aesthetic defect, but a distinct characteristic, which can be congenital or formed during the body's development.