For many transgender women, the voice is one of the hardest fronts of transition. Although hormone therapy produces visible changes in the body, it does not by itself change the pitch of the voice, because the vocal cords do not respond to oestrogen. When voice training is not enough, surgery can give the final push. A new retrospective study, published in Auris Nasus Larynx, looks in detail at what one of these procedures, cricothyroid approximation, achieves in the pitch and vocal well-being of transgender women.
Cricothyroid approximation is a surgical technique that tenses the vocal cords to raise the fundamental frequency of the voice, that is, to make it higher-pitched. What is striking about this work is that the whole procedure was carried out under local anaesthesia, with the voice monitored during the surgery itself, so the surgeon could adjust the result in real time while the patient was speaking.
The researchers followed 14 transgender women operated on between April 2019 and March 2024 at a single centre. They measured two things before the surgery and three months after: the fundamental frequency of speech, which is the height of the vocal pitch, and the Voice Handicap Index-30, a questionnaire that measures how the voice affects daily life across three subscales: functional, emotional and physical.
The results show a clear jump in pitch. The fundamental frequency rose from a median of 145.5 hertz before the operation to 212 hertz afterwards, a change that brings the voice closer to the range culturally perceived as feminine. In musical terms, it is a rise of more than six semitones, a difference you notice immediately by ear.
The vocal impact questionnaire also improved significantly: the total score fell from 62.5 to 32, indicating that the voice was no longer such an intense source of distress. The most interesting detail appears when the results are broken down: the functional and emotional subscales improved most, meaning both the ease of using the voice in daily life and the emotional relief of sounding like oneself.
However, the physical subscale barely changed. This means that, although the voice sounds more feminine and causes less distress, some physical discomfort when speaking may persist. It is an important nuance: surgery does not solve everything, and speech-language therapy support remains necessary so that the new voice is comfortable and sustainable in the long term.
The authors stress that analysing the questionnaire by subscales, rather than only the overall score, makes it possible to identify each woman’s specific concerns and design more personalised voice interventions. It is a step towards affirming care that does not treat all patients the same, but attends to what each one needs.
The voice is one of the most powerful signals of how others perceive us, and for many transgender women it becomes a central axis of their identity. Work like this is a reminder that surgery, when well indicated and accompanied by proper follow-up, can be a valuable tool so that the voice stops being an obstacle and simply becomes one’s own.
