Modern Concept of Gender Affirming Surgery

Led by Dr. Chettasak Tulayaphanich (formerly Dr. Chettawut), CEO of WIH International Hospital in Bangkok, Thailand, a pioneer in gender-affirming surgery. With a deep commitment to the LGBTQ+ community, Dr. Chettasak embraces the Modern Concept of Gender Affirming — prioritizing individualized care and identity-centered outcomes — and continues to refine innovative techniques like Dr. Chet’s Non-Penile Inversion. This vision is at the heart of WIH International Hospital’s mission.

⌵ Achieving Authentic Sensation in Gender-Affirming Surgery

In male-to-female (MTF) gender-affirming surgery, the preservation of erogenous sensation is paramount for both sexual function and personal identity. Dr. Chettasak Tulayaphanich (formerly known as Dr. Chettawut Tulayaphanich) has meticulously designed his Non-Penile Inversion (NPI) technique to maintain and reconstruct the intricate sensory pathways essential for a fulfilling post-operative experience.

Anatomical Precision: Preserving the Pudendal Nerve Branches

Central to Dr. Chettasak’s approach is the careful preservation of the pudendal nerve, particularly its dorsal branches, which are responsible for transmitting sensory information from the genitalia to the brain. By safeguarding these nerves, the NPI technique ensures that the neoclitoris and surrounding structures retain their sensitivity, facilitating the potential for orgasm and enhancing overall sexual well-being.

Comprehensive Sensory Reconstruction

Beyond the neoclitoris, Dr. Chettasak’s technique emphasizes the preservation and reconstruction of additional sensory-rich areas:​

  • Clitoral Hood and Frenulum: Utilizing the prepuce to form a protective and sensitive clitoral hood.

  • Inner Labia and Posterior Fourchette: Crafted from neurovascularized tissue to maintain tactile responsiveness.

  • Vulvar Vestibule: Constructed to emulate the natural sensitivity of the vulvar region.

  • Vaginal Wall Adjacent to the Prostate (G-spot Area): Carefully designed to preserve the erogenous potential associated with the G-spot.​

This holistic approach recognizes the complexity of female sexual anatomy and aims to replicate the multifaceted nature of erogenous sensation.​

⌵ Achieving Natural Outcomes in Gender-Affirming Surgery

Dr. Chettasak Tulayaphanich, formerly known as Dr. Chettawut Tulayaphanich, brings over 29 years of expertise in gender-affirming surgery. His innovative Non-Penile Inversion (NPI) technique focuses on three critical anatomical components to ensure natural aesthetics and optimal function: the inner labia (labia minora), the vaginal introitus, and the urethral meatus.​

1. Inner Labia (Labia Minora)

The labia minora are essential for framing the vaginal opening and protecting the urethral area. Dr. Chettasak utilizes the prepuce—a thin, pinkish layer of skin—to craft the inner labia, achieving a natural appearance. Positioning is crucial; the labia commence just below the clitoris and extend to the vaginal opening, ensuring a smooth, continuous contour that mirrors cisgender female anatomy.​

2. Vaginal Introitus

The vaginal opening is meticulously shaped into a V-design to control width and provide a soft, realistic appearance. This configuration contributes to the overall natural look of the vulva, aligning with the anatomical standards observed in cisgender women.​

3. Urethral Meatus

A smooth and correctly positioned urethral opening is essential for both function and aesthetics. Residual erectile tissue from the original anatomy can sometimes lead to protrusions that may swell during arousal. To prevent this, Dr. Chettasak ensures the complete removal of expandable tissues, resulting in a clean and natural urethral area.​

These techniques are integral to the Non-Penile Inversion (NPI) method, designed to accommodate the unique anatomical variations of each patient. By focusing on these critical areas, Dr. Chettasak aims to deliver consistently beautiful and functional results that enhance patient confidence and satisfaction.

Advanced Vaginoplasty Techniques

1. Scrotal Skin Graft Vaginoplasty

• Key Features: Offers a natural appearance with light pink inner labia and a functional vaginal depth of 6 inches.
• Considerations: Requires lubricants during intimacy and has no self-lubrication.

2. Laparoscopic Colon Vaginoplasty

• Key Features: Provides a deeper vaginal canal (up to 7.5 inches) with natural self-lubrication from colon tissue.
• Considerations: Longer surgery and recovery time; slightly higher cost.

3. Laparoscopic Peritoneal Vaginoplasty (PPV)

• Key Features: Creates a naturally moist vaginal environment with a depth of 6–7 inches.
• Considerations: Requires daily dilation and is more expensive due to specialized techniques.

🔻 Selecting the Technique That’s Right for You

Your choice depends on your priorities: budget, depth and durability, or natural moisture. To ensure the best outcome, we recommend consulting with Dr. Chettasak at WIH International Hospital to explore the option that best aligns with your personal needs, lifestyles, and goal.

Why Dr. Chettasak’s Non-Penile Inversion Technique is the Best for Gender-Affirming Surgery (GAS)?

✅ Enhanced Sensations for Intimacy:

Dr. Chettasak’s technique prioritizes creating realistic sensations in the clitoris, inner labia, vaginal canal, and G-spot, enabling patients to achieve orgasms and fully enjoy intimacy.

✅ Natural Aesthetic Results:

The inner labia is carefully crafted from the prepuce for a soft, pinkish, natural appearance, while the vaginal opening is shaped into a feminine V-design with a smooth urethral area and no visible or protruding tissue

✅ Customizable for Individual Anatomy:

Dr. Chettasak’s approach adapts to each patient’s unique anatomy, ensuring consistently beautiful, natural results regardless of structural variations

✅ Comprehensive Approach to Functionality and Appearance:

Combining cosmetic and reconstructive techniques, Dr. Chettasak ensures both aesthetic appeal and practical usability, with careful tissue removal to prevent swelling and maintain a clean, functional urethral area

✅ Proven Results with Patient Satisfaction:

Years of follow-up data and patient feedback confirm the effectiveness of Dr. Chettasak’s technique, with patients highly satisfied with the natural look, feel, and functionality of their results.

Dr. Chettasak’s non-penile inversion technique seamlessly combines cosmetic precision with functional excellence, making it a leading choice for gender-affirming surgery. His meticulous attention to detail ensures exceptional results, empowering patients with natural, aesthetically pleasing, and fully functional outcomes.

Why Choose Dr. Chettasak for Male-to-Female Surgery?

Dr. Chettasak Tulayaphanich is a globally renowned expert with over 29 years of experience in gender-affirming surgery (GAS), specializing in male-to-female (MTF) surgery. Here’s why he’s the top choice:

  1. Advanced Techniques: His signature Non-Penile Inversion Technique ensures natural, feminine, and functional results tailored to each patient.
  2. Personalized Care: Dr. Chettasak focuses on patient goals, offering options like Scrotal Skin Graft, Laparoscopic Colon Vaginoplasty, and Peritoneal Vaginoplasty (PPV) to suit individual needs.
  3. World-Class Facilities: At WIH International Hospital, patients enjoy state-of-the-art care, luxury rooms, and a professional team for seamless recovery.
  4. Proven Results: Thousands of satisfied patients highlight his skill in creating realistic external appearance, enhanced sensations, and optimal vaginal depth.
  5. LGBTQ+ Dedication: Passionate about empowering the transgender community, Dr. Chettasak ensures every patient feels confident and validated.

☑️ Make the Right Choice for Your Transformation

The primary surgery is your best opportunity to achieve optimal results. Dr. Chettasak’s expertise, combined with his personalized care and innovative techniques, ensures you’ll get the best outcome the first time.

Transform with confidence! Contact WIH International Hospital today for expert care in gender-affirming surgery.

Dr. Chettasak Tulayaphanich: One of the World’s Leading Gender Affirmation Specialists

WIH Operating Theater Fully Equipped with Yellofin Stirrups for All Types of Male-to-Female Surgery

WIH Operating Theater Fully Equipped with Yellofin Stirrups for All Types of Male-to-Female Surgery

WIH Surgical Team for Gender Reassignment Surgery with PPV (Peritoneal Pull-Through Vaginoplasty)

WIH Surgical Team for Gender Reassignment Surgery with PPV (Peritoneal Pull-Through Vaginoplasty)

Why Choose WIH International Hospital for Your Gender-Affirming Surgery (GAS)?

WIH International Hospital is the premier destination for gender-affirming surgery, offering world-class expertise, advanced facilities, and exceptional post-surgery care. Here’s why patients trust us:
Expertise of Dr. Chettasak: With over 29 years of experience, Dr. Chettasak is a globally renowned surgeon specializing in gender-affirming surgery. His signature Non-Penile Inversion Technique ensures natural aesthetics, enhanced sensation, and functional results.
Specialized Surgery Hospital: Exclusively designed for advanced surgical procedures, WIH International Hospital features state-of-the-art facilities tailored specifically for gender-affirming surgery patients. Our modern devices and technologies enable excellence in both laparoscopic and endoscopic surgeries.
Dedicated Post-Surgery Care Ward: Our luxurious recovery wards are designed to provide comfort and care, ensuring a smooth and stress-free healing process for gender-affirming surgery patients.
Highly Trained Nursing Staff: Our nursing team is experienced in providing personalized care for gender-affirming surgery patients, ensuring your safety and comfort during recovery.
Reputation in Anesthesia and Pain Control: With expert anesthesiologists and advanced pain management protocols, we prioritize patient safety and minimize discomfort throughout your surgical journey.
At WIH International Hospital, we are committed to transforming lives through compassionate care, cutting-edge techniques, and a patient-first approach. Let us help you achieve your dreams with confidence and excellence.

Reviewing Before & After Surgery Photos

“Warning: This content contains post-surgical results of Gender Affirming Surgery (GAS). Viewer discretion is advised.”

Sex reassignement surgery by Dr. Chettawut Thailand-labia spread 02 edit
Sex reassignement surgery by Dr. Chettawut Thailand-labia spread edit

Example Result of Dr. Chettasak’s Non-Penile Inversion Gender-Affirming Surgery

This case highlights a successful outcome of Dr. Chettasak’s non-penile inversion gender-affirming surgery, performed on a patient with an average penile length (uncircumcised before surgery). The patient kindly shared her postoperative results, showcasing aesthetic refinement and functional success.

Key Aesthetic & Surgical Features:

  • Well-formed Labia Minora: Created using full penile and prepuce skin, natural lip-like folds extending from the clitoral frenulum to the vaginal introitus, closely mimics natural female genitalia.
  • Vertically Elongated Vaginal Opening: Oval-shaped for a realistic, biological female appearance, neither too wide nor excessively large.
  • Accurate Urethral Placement & Size: Correct anatomical positioning, maintains functional and aesthetic harmony.
  • Successful Creation of the Posterior Fourchette: Well-defined junction where the labia minora meet, enhances natural genital aesthetics and anatomical integrity.
  • Proportionate & Scar-Free Labia Majora: Smooth, well-contoured, and natural-looking, no visible scarring, blending seamlessly with surrounding tissue.
  • Admired Pinkish Hue: The reddish-pink tone, praised in online forums, enhances the feminine aesthetic, closely resembles cisgender female anatomy.
  • Postoperative Healing & Vaginal Depth: Smooth and rapid healing, with no reported complications, successful dilation routine, maintaining a 6.5-inch vaginal depth.

This result highlights Dr. Chettasak’s expertise in achieving both aesthetic beauty and functional success in gender-affirming surgery.

Dr. Chettawut's gender affirming surgery - labia close edit
Dr. Chettawut's gender affirming surgery edit

Example Result of Dr. Chettasak’s Non-Penile Inversion Gender-Affirming Surgery

This case highlights the exceptional aesthetic outcome of Dr. Chettasak’s non-penile inversion technique in a patient with an average penile length (uncircumcised before surgery).

Key Surgical Features & Aesthetic Outcomes:

  • Well-formed Labia Minora: Sculpted using full penile and prepuce skin, natural, soft, lip-like folds extending from the clitoral frenulum to the vaginal opening, closely resembles natal female anatomy.
  • Vertically Elongated Vaginal Opening: Oval-shaped, neither excessively wide nor narrow, mimics cisgender female genital proportions.
  • Accurately Positioned Urethral Opening: Anatomically correct placement and size for functional and aesthetic balance.
  • Successful Creation of the Posterior Fourchette: The posterior fourchette is well-defined, seamlessly merging with the labial contours, enhances natural genital harmony and authenticity.
  • Proportionate & Scar-Free Labia Majora: Smooth, well-contoured, and aesthetically balanced with body proportions, free from noticeable surgical scars.
  • Admired Pinkish Hue: The reddish-pink tone of the genital tissue, widely praised in the Reddit forum, enhances the feminine aesthetic.
  • Successful Vaginal Depth & Healing: Patient maintains optimal vaginal depth through regular dilation, no reported complications or irregular healing.

This result demonstrates Dr. Chettasak’s advanced surgical expertise, ensuring both aesthetic beauty and functional success in gender-affirming surgery.

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Scheduling Surgery with Dr. Chettasak at WIH International Hospital

How do I start the process?

Contact the hospital via email at info@wihhospital.com. Submit a completed Patient Health Information Form and disclose any medical conditions. Photos may be required for surgical assessment.

Is an online consultation available?

Yes, online consultations can be scheduled through the CRM team for a fee.

How do I book my surgery?

Choose a surgery date with the hospital team. A non-refundable deposit of 20% is required within 10 days to secure the booking.

What are the payment options?

Payments can be made via international wire transfer or an online payment link.

What lab tests are needed before surgery?

Complete all required lab tests within 2 months of the surgery date. Please refer to the list of required lab tests at https://www.wihhospital.com/booking-your-surgery-at-wih-hospital/

Do I need to submit my flight details?

Yes, provide your full flight itinerary from the airline to arrange airport transportation service and book our post-surgery care ward (Hospitel service for recovery).

Hear the Voice from our Patients!

💖 At WIH, every story is unique, and every transformation is extraordinary. Discover how our compassionate team and world-class techniques are changing lives.


Russia:
“A Journey of Transformation – A Russian Patient’s Experience at WIH.”


China:
“Breaking Barriers – A Chinese Patient’s Path to Confidence with WIH.”


Philippines:
“Empowering Change – A Testimonial from the Philippines at WIH.”


7″ Deep, Easy Dilation | GAS with PPV by Dr. Chettasak at WIH Hospital


Peritoneal Vaginoplasty (PPV) with Dr. Chet at WIH Hospital

📸 See More Inspiring Stories on Instagram – Click Here!

Comprehensive FAQ for Patients Planning Gender-Affirming Surgery (GAS)

Is Dr. Chettasak Tulyapanich the same person as Dr. Chettawut?
Yes, Dr. Chettasak Tulyapanich (formerly known as Dr. Chettawut) is the same renowned surgeon. He used the name Dr. Chettawut while working at Chettawut Plastic Surgery Center. He later opened WIH International Hospital in 2017 and changed his name to Dr. Chettasak. Patients can still refer to him as Dr. Chet or Dr. C.

• How often should I perform vaginal dilation after surgery?
• What tools are required for proper dilation?
• How can I prevent shrinkage of the neovagina?
• What’s the correct technique for effective dilation?
• When can I reduce the frequency of dilation?
👉 Find all the answers on Dr. Chet’s IG!

1. What types of rooms are available and rates?

Deluxe Room (26 sq. m): 2,900 THB/night for 1 person, 3,400 THB/night for 2 people.
Grand Deluxe Room (30 sq. m): 3,500 THB/night for 1 person, 3,900 THB/night for 2 people.
VIP Family Room (70 sq. m): 12,500 THB/night for 2–3 people.
2. Can relatives stay with the patient?
Yes, all room types allow relatives, with rates adjusted for additional occupancy.

3. Where is the post-surgery care unit located?
On the 9th floor of WIH International Hospital.

4. How can I view the rooms?
Watch the room features here: WIH Hospital Room Features.

Post-Surgery Care Unit at WIH International Hospital

Deluxe Room

The room size is 26 sq. m for Deluxe Room.

The amenities include Complimentary Wi-Fi, a flat-screen LCD television, a toiletries set, and an In-room safe.

The type of bed for the patient can be either a patient bed or a standard-size regular bed.

The rate for a Deluxe room with breakfast for one person (patient) is 2,900 THB per night, and for two persons (1 patient and 1 relative), it is 3,400 THB per night.

Post-Surgery Care Unit at WIH International Hospital

Grand Deluxe Room

Enjoy maximum comfort and beautiful city views in your 30-sq. m Grand Deluxe Room.

The amenities include Complimentary Wi-Fi, a flat-screen LCD television, a toiletries set, and an In-room safe.

The type of bed for the patient can be either a patient bed or a standard-size regular bed.

The rate for a Grand Deluxe room with breakfast for one person (patient) is 3,500 THB per night, and for two persons (1 patient and 1 relative), it is 3,900 THB per night.

Post-Surgery Care Unit at WIH International Hospital

VIP Family Room

Discover ultimate comfort in your spacious, fully equipped haven. Set across 70 sq. m, the VIP Family comprises a separate living and sleeping area. There are two bathrooms in each room.

The amenities include Complimentary Wi-Fi, two flat-screen LCD televisions, a toiletries set, an In-room safe, and a work desk.

The type of bed for the patient can be either a patient bed or a standard-size regular bed.

A VIP family room can provide three beds and you can request one more bed with an extra charge.

The rate for a VIP family room with breakfast for 2-3 persons will be 12,500 THB per night

1. Who qualifies for this service?
International patients arriving at Suvarnabhumi (BKK) or Don Mueang (DMK) airports and staying at the hospital’s post-surgery accommodation.
2. How do I arrange it?
Send your full flight itinerary (PDF/JPEG) and a recent photo for driver recognition.
3. Where do I meet the driver?
o BKK Airport: Meeting Point near Gate 3.
o DMK Airport: Meeting Point near Gate 2.
4. Can I arrange transport for a companion?
Yes, additional transport for friends/relatives on different flights is available for a fee.
5. How is return transport handled?
Scheduled approximately 4 hours before flight departure.

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