Sex-changing characters

Novels in which only a few or exceptional characters change sex. May involve the study of a single character who changes sex; may involve the story of a character who can change sex at will.

Permanent sex change

• Lois McMaster Bujold's A Civil Campaign (1999) (a minor female character undergoes a sex change in order to get around primogeniture)
• Angela Carter's The Passion of New Eve
• Jack M. Chalker - many novels include some sort of sex change
• Wraeththu by Storm Constantine when infected change sex to a male-looking hermaphroditic sex; this is a species-wide change but focus can be on transformation of an individual

Temporary one-time sex change

• Sabrina the Teenage Witch - episode in which several characters are transformed to male by drinking "Boy Brew"
• Lynn Flewelling, The Bone Doll's Twin and Hidden Warrior
• Geoff Ryman, The Warrior Who Carried Life (magical transformation of female to male body; eventually transforms back)
• Virginia Woolf, Orlando (1928) (and see Sally Potter's film adaptation, (1993)) - a man decides not to grow old; one day he wakes up as a woman

Changes sex repeatedly

• Ranma 1/2 - Protagonist, Ranma, a male, is cursed to change to female periodically

Can change sex repeatedly at will

• Samuel R. Delany's Triton (sex changes are possible; among other references, a male character grows functional breasts to nurse a child)
• Kelley Eskridge, "And Salome Danced" (one character, Jo(e) Sand, changes sex and gender at will)
• Thomas T. Thomas, Crygender - Protagonist is a shapeshifter