Board Thread:Questions and Answers/@comment-11398218-20131130064404/@comment-11477779-20131205080132

Good catch! I didn't even notice! If Orihime was around I could see her fixing it, but it doesn't seem like anyone has had time for much healing and with Unohana gone there may not be anyone with enough skill available. Not to mention it seems like it was intended as a permanant and cool new characteristic for Shunsui, like Yamamoto's battle scars.