If you’re looking for a more feminine vocal timbre change, Wendler’s glottoplasty could be the ideal solution. Especially recommended for trans women and people who want a more harmonious trans female voice, this technique promotes the feminization of the voice in a definitive, safe and natural way.

The procedure is carried out privately by Dr. Isabela Tavares , an otorhinolaryngologist specializing in voice, in São Paulo – SP. Surgeries can take place in hospitals of excellence such as Albert Einstein, Sírio-Libanês, Nove de Julho and IGESP. For those looking for financial predictability, we offer an exclusive package at IGESP Hospital, ideal for those who want to plan ahead with peace of mind.

📊 Value table – Wendler’s Glottoplasty (private in SP)

ℹ️ What’s included in the surgical package

• Dr. Isabela Tavares’ fees

• Anesthetist

• Surgical assistant

• Instrumentator

• Hospital fees

• Operating room

• Hospitalization at IGESP Hospital (São Paulo – SP)

• Post-operative speech therapy can be contracted separately.

Meet the Trans Voice specialist: Dr. Isabela Tavares

A Dr. Isabela Tavares (CRM 14851 | RQE 12006) is a clinical and surgical otorhinolaryngologist, with an outstanding track record in voice surgery, vocal feminization and the treatment of dysphagia and laryngeal disorders. Nationally recognized as one of the leading references in the field, she has been the choice of trans patients from all over Brazil who are looking for safety, warmth and technical excellence.

With solid training and an exclusive focus on voice, Dr. Isabela completed her medical residency in Otorhinolaryngology at Hospital Otorrinos/BA and specialized in Larynx and Voice at the renowned UNIFESP – Federal University of São Paulo, one of the country’s reference centers.

He currently focuses on voice feminization surgery, especially the Wendler glottoplastyrecognized as the most effective technique for changing vocal timbre in trans women. Her work is guided by ethics, active listening and commitment to her patients’ real results.

In addition to surgery, Dr. Isabela is part of a multidisciplinary team supporting the trans female voice, working with specialized speech therapists and providing private consultations in São Paulo – SP, with hospital facilities in the city’s main centers, such as Hospital IGESP, Albert Einstein, Sírio-Libanês and Nove de Julho.

📍 National reference in trans voice surgery.
🤝 Humanized, technical and confidential care for each patient.

What is Wendler’s Glottoplasty and for whom is it indicated?

Wendler’s glottoplasty is a voice feminization surgery indicated mainly for trans people who wish to make their voice higher, softer and more in line with their gender identity. It is the most commonly performed procedure in the world for this purpose, offering permanent and natural results.

The technique acts directly on the vocal folds, causing the anterior glottis to shorten. This changes the frequency of the voice, raising the pitch and favoring a change in vocal timbre that approximates the acoustic pattern of the trans female voice.

This procedure is recommended for trans women, non-binary people and patients who, even with speech therapy, are unable to achieve the desired vocal feminization. In some cases, it may also be indicated for individuals with vocal dysphoria that affects their self-esteem and social life.

The surgery should be performed by an otorhinolaryngologist specializing in voicewith experience in laryngeal microsurgery and multidisciplinary support. Dr. Isabela Tavares works with this approach in São Paulo, always in an ethical, welcoming and technical manner.

How the surgery works and the change in vocal timbre

Wendler’s glottoplasty is a minimally invasive surgical technique performed under general anesthesia, with endoscopic access – that is, without external cuts. During the procedure, the surgeon repositions and sutures part of the vocal folds, reducing their vibratory extension. This anatomical change alters the fundamental frequency of the voice, making it higher-pitched and with characteristics compatible with the trans female voice.

By shortening the vibrating portion of the vocal cords, there is a noticeable change in vocal timbre, with a higher pitch and lighter emission. The aim is to achieve vocal feminization that is not only acoustic, but also functional, without compromising the health or quality of the voice in the long term.

Voice feminization surgery is definitive in its anatomical result, but requires a complementary process of vocal rehabilitation with a speech therapist. Post-operative speech therapy is essential to ensure that the new laryngeal configuration is used correctly, without strain or compensation.

It’s important to note that voice surgery for trans women does not replace previous speech therapy, but enhances its results when there are anatomical limitations. The combination of the two treatments is what guarantees greater naturalness and vocal safety in everyday life.

Before and after: what to expect from your voice after surgery

The before and after of Wendler’s glottoplasty goes far beyond the technical side. The surgery is a milestone in the journey of many patients who want to align their identity with the way they express themselves when they speak. The impact of vocal feminization is direct on self-esteem, social confidence and even in professional contexts.

In the first few days after the procedure, a period of absolute vocal rest is necessary, followed by gradual rehabilitation with a specialized speech therapist. The new configuration of the vocal folds requires adaptation, breathing training and resonance adjustments so that the change in vocal timbre consolidates naturally.

Results vary according to each patient’s vocal anatomy and engagement with speech therapy. In general, there is a significant increase in the fundamental frequency of the voice (F0), with an improvement in the smoothness and clarity of vocal emission.

🔊 The expectation is to achieve a trans female voice with an acoustic standard compatible with the desired one, without compromising vocal health or causing effort to speak.

Voice feminization surgery is a definitive resource for those who haven’t achieved the expected results with phonotherapy alone, or who want a more stable and physiological result. When properly indicated and performed by a specialized team, glottoplasty transforms not only the voice – but the whole way a person communicates with the world.

The cost of surgery: what’s included and why you should trust us

The decision to undergo voice feminization surgery involves not only the desire to transform the way one is heard, but also financial planning with predictability and security. With this in mind, Dr. Isabela Tavares offers a complete private package for Wendler’s glottoplasty, with an excellent hospital structure and a specialized team.

The cost of the surgery starts at R$25,000.00, and includes all the essential costs for carrying out the procedure in a safe and highly qualified environment. This includes:

• Surgeon’s fees

• Anesthetist

• Surgical assistant

• Instrumentator

• Hospital fees

• Operating room

• Hospitalization at IGESP Hospital, in São Paulo – SP

This private glottoplasty model allows patients to understand exactly what they are getting, avoiding surprises or extra charges. Unlike fractional procedures, this is a closed package, designed for those seeking peace of mind and confidence at every stage of the change in vocal timbre.

💡 Speech therapy is not included in the surgical package and can be contracted separately with partner speech therapists who specialize in trans women’s voice rehabilitation.

This transparency is one of the pillars of the work of Dr. Isabela Tavares, who acts with ethics, active listening and commitment to the well-being of each patient.

What patients say: trust, acceptance and transformation

The experience with Dr. Isabela Tavares goes beyond surgical technique. On a day-to-day basis in the office and operating room, what stands out is care, respect for each patient’s identity and active listening at all stages of treatment.

Working at the Instituto Medicina em Foco, Dr. Isabela is linked to NuAD – the Diversity Support Center, a space dedicated to offering comprehensive, safe and welcoming care to the LGBTQIA+ population, especially trans people in the process of affirming their gender.

Check out what patients who have undergone Wendler’s glottoplasty with her say:

🗣️ “Dr. Isabela treated me with such humanity that I felt I was being heard for the first time. The surgery was a turning point in my life.“
– Júlia M., trans patient

🗣️ “I came from another state to have the surgery with her, because I didn’t trust anyone else. Today my voice is part of who I am, and I’m grateful for every detail of the care.“
– Renata L., trans voice patient

🗣️ “Instituto Medicina em Foco has an incredible team, and NuAD embraced me from the first contact. I felt safe, informed and respected.“
– Alice T., non-binary patient

Each report reinforces Dr. Isabela’s commitment to combining science, listening and welcoming. Wendler’s glottoplasty, when performed by a trained team, transforms much more than the voice: it transforms life.

How to schedule your appointment with Dr. Isabela Tavares

If you’re ready to take the next step towards a trans female voice that reflects your identity, the team at Dr. Isabela Tavares is ready to welcome you. Appointments are made privately, exclusively and confidentially at the Instituto Medicina em Foco, in São Paulo – SP.

During the initial assessment (R$750.00), the doctor carries out a complete analysis of your voice, clinical history and expectations. From there, a personalized plan is drawn up, with all the details of the Wendler glottoplasty, necessary exams, pre- and post-operative guidelines.

📍 Address: Rua Frei Caneca, 1389 – Consolação, São Paulo – SP – CEP 01307-000
☎️ Telephone: (11) 3289-3195
🌐 Official website: www.emfoco.med.br
🏥 Surgical hospitals: IGESP, Albert Einstein, Sírio-Libanês and Nove de Julho
💬 WhatsApp service for initial screening
💳 Private payment, with the possibility of installments (see conditions)

Vocal feminization is a profound and transformative step. Choosing professionals who respect your identity from the very first word is essential for a safe and positive experience.

👉 Click here to schedule your appointment with Dr. Isabela Tavares and give voice to your true identity.

NuAD: comprehensive health and care for LGBTQIA+ people

NuAD – Diversity Support Center is a project of the Instituto Medicina em Foco created to offer specialized, humanized and safe medical care to the LGBTQIA+ population, with a focus on welcoming, active listening and affirmative health practices.

Coordinated by professionals committed to equity and respect for each person’s identity, NuAD’s mission is to promote comprehensive, non-judgmental care. The center serves trans people, gay men, lesbian women, non-binary people, intersex people and all expressions of diversity.

We work with a multidisciplinary team made up of experts in key areas of LGBTQIA+ health, including:

• Otorhinolaryngology with a focus on trans voice

• Endocrinology for hormone therapy (female and male)

• Inclusive gynecology for trans men

• Urology for trans women and genital affirmation care

• Proctology with an approach to anal sexuality and STIs

• Affirmative psychiatry and psychology

• Nutrology and nutrition focused on body transition and metabolic health

• Infectious diseases with a focus on combined prevention, PrEP, PEP and treatment of STIs

• Plastic surgery and reconstructive procedures

• Gastroenterology and digestive health with sensitivity to LGBTQIA+ reality

• Aesthetic and clinical dermatology for trans and non-binary people

All appointments are carried out with confidentiality, respect and inclusive language, valuing listening and individualized care. NuAD also offers pre- and post-surgical follow-up for procedures such as Wendler’s glottoplasty, masculinizing mastectomy, vaginoplasty, among others.

🌈 At NuAD, diversity is cared for with science, dignity and welcome.
💜 Our commitment is to LGBTQIA+ health that respects who you are – in all aspects of life.

Frequently Asked Questions about Vocal Feminization Surgery

1. What is glottoplasty?

It is a surgical technique performed on the vocal folds to permanently raise the pitch of the voice. It is indicated for those who want a higher, softer vocal pattern, especially trans people in the process of gender affirmation.

2. How much does the procedure cost?

The cost of the surgical package, with a full team and hospital structure at IGESP, starts at R$25,000.00. The consultation with the specialist costs R$750.00.

3. Does surgery dispense with speech therapy?

No. Follow-up with a speech therapist is essential after the procedure to ensure safe adaptation and functional use of the new voice.

4. What is the difference between speech therapy and surgery?

Speech therapy acts on the way the voice is used, without altering anatomical structures. Surgery, on the other hand, modifies the vibration of the vocal folds, promoting more stable changes.

5. Who is the doctor responsible for the procedure?

Dr. Isabela Tavares is an otorhinolaryngologist specializing in voice, trained at major centers such as UNIFESP. She is one of the most sought-after professionals in the country for this type of surgery.

6. Are the results permanent?

Yes, the change in vocal anatomy is permanent. With proper post-operative guidance, the results are natural and long-lasting.

7. What is the recovery time?

Vocal rest varies between 7 and 10 days, followed by gradual rehabilitation. Complete adaptation can take a few weeks, depending on each person’s profile.

8. Is the procedure covered by health insurance?

Currently, it is only carried out privately. The Instituto Medicina em Foco offers care at a fixed and predictable price.

9. Are there any risks associated with the procedure?

As with all surgery, there are risks, but when performed by a specialized team, complications are rare and manageable. Choosing an experienced center makes all the difference.

10. Does the Instituto Medicina em Foco offer LGBTQIA+ care?

Yes. NuAD – the Diversity Support Center – is part of the Institute and offers humanized medical care, with professionals specializing in trans health, hormone therapy, gynecology, voice, sexuality and more.

Content updated in 2025.