Board Thread:Naruto Discussions/@comment-31948035-20170603210118/@comment-30323490-20170715074116

You are forgetting that Obito also had half of his body made from zetsu, which grants him regeneration just like Hashirama's.And unlike Madara, he has a whole half of his body made from it, not just a pectoral. But compared to the TT regeneration is quite insemnificant.