[He almost argues that he could tend to the damage himself but he knows the look on Hinata's face. With a heavy sigh he turns around and peels his cotton shirt off. The differences in his body since that day long ago on the island are clear. He has muscle definition on his arms and back. Some scars but the problem is the torn up skin of his back. The wounds have bits of dirt and rock and he places both of his hands on the tile wall while trying not to think about being this undressed around Hinata.

He fails not to think about it.] ...How bad is it?

[It's bad enough to be sluggishly bleeding but not terrible.] Anyway, yes, I suspect that is the case. I can't confirm it for now but, this is a theory I'm bias towards.