Ive seen alot of theories about narutos bandaged arm being something he does to cover the sun mark or just cosmetic.
But here is what i am thinking not sure if its the truth hence why its called a theory.
After the late stages of the war Naruto has all 9 Bijuu in him and has learned to use all their chakra natures.
Once he learned those chakra natures i have a feeling he will still continue to train and then he tries to combine all 9 of the bijuus chakra natures into one rasengan. Since this would be an OP combination i think it kinda messes his arm up between the heat the acid etc etc etc.
I say this because we saw what happened to him after he first used the rasenshuriken if he would have kept using it it would have destroyed his chakra nodes in his hands. That was just with Wind nature in the rasengan.
Now you add all 9 of the natures into a Rasengan and i dont even think Sage mode could cope with the damage.
Tell me what you guys think
But here is what i am thinking not sure if its the truth hence why its called a theory.
After the late stages of the war Naruto has all 9 Bijuu in him and has learned to use all their chakra natures.
Once he learned those chakra natures i have a feeling he will still continue to train and then he tries to combine all 9 of the bijuus chakra natures into one rasengan. Since this would be an OP combination i think it kinda messes his arm up between the heat the acid etc etc etc.
I say this because we saw what happened to him after he first used the rasenshuriken if he would have kept using it it would have destroyed his chakra nodes in his hands. That was just with Wind nature in the rasengan.
Now you add all 9 of the natures into a Rasengan and i dont even think Sage mode could cope with the damage.
Tell me what you guys think