Board Thread:Naruto Discussions/@comment-1018594-20160409062530/@comment-732150-20160727215929

Just looked it up, Edo Itachi's eyes clearly bleed from using MS in chapter 550, so yeah, Edos can bleed. If Gengetsu didn't require blood for summoning his clam, he would not bit his finger, so Edo's clearly can bleed as a consequence of their own jutsu.