What Are The X Scars On 'The Walking Dead'

'The Walking Dead' fans have dying to know the secret behind 'X' scars.
Both Michonne and Daryl have them and apparently getting them was a traumatic experience.
It happened at some point in the six-year time jump the show made this season.
“Some of the stuff we know why it changed, and some of the stuff we’re going to discover. We will discover where those Xs come from. It’s a really f—ed up story." Director Michael Cudlitz.
Fans can't wait to learn more!