What shape is Harry Potter's scar?

The story behind the answer

Harry Potter’s scar is a lightning bolt. He received it as a baby when Voldemort’s Killing Curse (Avada Kedavra) rebounded, leaving the jagged bolt on his forehead instead of killing him. The scar sometimes burns as a warning or when Voldemort is near, reflecting their magical connection.

Culturally, the bolt became an emblem of the series—appearing on covers and posters—symbolizing survival and the sudden strike of dark magic. Memory tip: Boy Who Lived = Bolt; picture the green “lightning” of the curse leaving a lightning-shaped mark.