Eunuch Fetish and Nullification (Nullo): Understanding This Extreme Fantasy
Definition : This fantasy is one of the deepest and most disturbing. It is the desire to transcend gender by getting rid of what biologically defines it.
- Keywords
- Eunuch Fetish, Nullification, Nullo, castration, fantasy, BDSM, submission, body dysmorphia, risks, danger, mental health
- Topics
- Humiliation & Degradation, Gay Fantasies and Fetishes
- Updated
Read in French → Fétiche de l'Eunuque et Nullification (Nullo)

What is Eunuch Fetish and Nullification?
This fantasy is one of the deepest and most disturbing. It is the desire to transcend gender by getting rid of what biologically defines it. For a man, it is the fantasy of castration: the removal of the testicles, or even the penis, to become a pure being, an ultimate servant, a body no longer distracted by masculine libido. For others, it is “nullification” or “nullo,” the idea of having nothing left, a smooth surface, becoming an asexual object entirely available to the will of their Master. For the vast majority, it remains a powerful fantasy, a “headspace” of total submission, an idea that fuels arousal without ever being acted upon.
What are the Dangers of Nullification?
The danger here is absolute, and there is no room for play. Attempting to put this fantasy into practice outside a legitimate medical setting (which is almost non-existent and highly regulated) is suicide. Clandestine castration means unstoppable hemorrhage, guaranteed systemic infection, and almost certain death. It’s a one-way ticket to the morgue. For the person performing the act, it’s a one-way ticket to prison. This desire is often linked to severe body dysmorphia, a deep malaise that requires professional psychological help, not a role-play that turns into tragedy.