User blog comment:FairyRaven/Fairy Tail Chapter 324: The One Who Closes The Door, Review and Commentary/@comment-6146666-20130322201350/@comment-4643135-20130323092448

The only other time I've seen blood in the anime is when Makarov was hit by Grimoire Heart's Jupiter Cannon. Even then, it was more magenta instead of red. But it tested the waters to make way if they actually want show bleeding if there weren't too many complaints about it.