Hypertrophy ( () (だい) () Hidaika?) is a Quirk possessed by All For One, who stole it from an unknown person.


Although never properly described, the Quirk seemingly allows All For One to enlarge his arm at will. The etymology and medical definition of the word "hypertrophy" also suggest this to be the Quirk's effect.[1]


  1. My Hero Academia Manga and Anime: Chapter 93 (p. 12-13) and Episode 49.

External Links

  • Hypertrophy - Wikipedia article about the medical condition known as Hypertrophy, which is characterized by enlarged cells.

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