Board Thread:Naruto Gaiden/@comment-26387606-20150510193623/@comment-25025726-20150517000144

I've got a question. Why would Naruto and Sasuke need a prosthetic arm when Naruto can grow body parts back? He did it with Kakashi's eye, he stopped Guy from dying after he opened the 8th gate, yet for some reason he can't grow an arm back.