This is the second chapter in this book to explore somatic instability: here we discuss zhiguai tales that represent changes in gender. That characters naturally transform from one gender to another destabilises gender as an unalterable identity, and situates gender transformations as a facet of nature. We trace out a variety of patterns present in these tales—some depict changes more positively than others. Women transforming into men, for example, is depicted far more positively than men transforming into women—part of a wider pattern where such changes are treated as forms of reward or punishment, respectively. We finish with an exploration of tales which more radically trouble gender as a binary state.