Kagami Uchiha knew a little about Medical Ninjutsu, but he was not familiar with the specifics of its research. After all, he was a senior official in the Konoha Military Police Force, not the Medical Department. Only Kazemori Masaki, who had to keep an eye on the entire village, could keep track of every department's latest research.
"Can they really regenerate an arm?" Kagami Uchiha asked doubtfully. "This isn't healing an ordinary wound. It's growing an entire arm back."
"It can be done, but it's extremely complicated. It takes a large group of people working together to reconstruct the cells. The human body is essentially made up of cells, so theoretically, Medical Ninjutsu that stimulates cell division and reconstruction can regenerate an arm. But the amount of power required is far beyond what an ordinary person can supply," Kazemori Masaki said.
Regenerating something as substantial as a missing arm was no simple matter. Even Hashirama Senju would have had to proceed carefully to have a chance of regrowing one, while ordinary people would have to invest far more time and effort. Even if they could achieve the same results as someone with godlike abilities, they would have to pay a much greater price.
In fact, if they cultivated Hashirama cells, they could quickly attach a new arm to Kagami Uchiha. Since he, too, carried the Sage's bloodline, he would not have to worry about the cells invading his body. But Hashirama cells were ultimately Hashirama Senju's cells, not Kagami Uchiha's own, and they would inevitably cause some discomfort. Of course, the powerful vitality they provided would enhance Kagami Uchiha's abilities, making that discomfort easy to overlook, but an unsuitable match was still an unsuitable match.
Moreover, once research into Hashirama cells began, someone might start coveting that power. Without the