What is Sex Reassignment Surgery?

Sex reassignment surgery (SRS) is a medical procedure that changes a person's physical characteristics to align with their gender identity. Also known as gender affirmation surgery, it helps ease the distress that can come from a mismatch between gender identity and physical appearance. For many people, transgender surgery is a meaningful step toward feeling at home in their own body.

Everyone's path is different, which is why Nirunda Clinic offers a full range of options. SRS here covers procedures for both male-to-female (MTF) and female-to-male (FTM) transitions, as well as facial feminization surgery and chest surgery. The sections below explain each one in turn.

Why Choose Thailand and Nirunda Clinic

Before looking at specific procedures, it helps to understand why so many people travel here. Thailand is a well-established destination for gender affirmation care, and those researching Thailand for sex change often look to Bangkok for its experienced surgeons and dedicated aesthetic clinics. Nirunda Clinic brings sex change surgery in Bangkok together in one coordinated pathway, from your first consultation through to post-operative follow-up, so you are never left to navigate the process alone.

Male-to-Female (MTF) Surgery in Thailand

For transgender women, MTF surgery in Thailand reshapes male genitalia into female genitalia, with the goal of creating a body that reflects who you already are. Before any operation is scheduled, the first question to consider is candidacy.

Are You a Good Candidate?

Thailand has clear, patient-protective requirements in place, and meeting them is the starting point for everyone:

• You must be at least 18 years old. Patients under 20 need a parent or guardian's signed permission on the consent form.
• By Thai law, you must have approval from two Thai psychiatrists and a diagnosis of gender identity disorder, gender dysphoria, or an associated condition before surgery.
• You must have completed at least one year of antiandrogen and female hormone treatment, along with a period of living full-time in your desired gender role.

Once these criteria are met, your surgeon can talk you through which surgical technique best fits your body and goals. There are a few approaches, and they are explained below.

Penile Inversion Vaginoplasty

Penile inversion is the most widely used technique, and it is where most MTF journeys begin. In our Bangkok clinic, the surgery starts by creating the vaginal cavity between the urethra, prostate, bladder, and rectum. The surgeon removes both sides of the scrotal skin, peels the skin of the penile shaft, and inverts it to form the vaginal lining. The glans, with its two dorsal nerves and vessels, is carefully preserved to set the position of the sensate clitoris. Urethroplasty and labiaplasty follow, removing excess erectile tissue around the urethra to prevent engorgement during arousal. The procedure finishes with wound packing, blood drainage, and placement of a urine catheter.

Because every body is different, penile inversion is adapted to penile length:

• Long (over 6 inches): penile skin inversion
• Medium (2 to 6 inches): penile skin inversion with scrotal skin graft
• Short (under 2 inches): penile skin inversion with sigmoid colon flap

For some patients, a different approach offers a better result, which is where the next two techniques come in.

Peritoneal Vaginoplasty

When more vaginal depth is needed, peritoneal vaginoplasty may be considered. A laparoscope and instruments are inserted through small 5 to 8 cm incisions to develop the space between the lower urinary tract and the rectum. This space becomes the vaginal canal, lined with peritoneal flaps pulled through to the area between the urethra and rectum. The remaining steps, including labiaplasty, penectomy, clitoroplasty, orchiectomy, and partial urethrectomy, follow the same principles as penile inversion.

Rectosigmoid Vaginoplasty

A third option, rectosigmoid vaginoplasty, is particularly helpful for patients with limited penile tissue. Here, a section of the sigmoid colon forms the vaginal lining, and it offers some clear advantages:

• Good vaginal depth and natural lubrication
• Lower risk of bleeding after intercourse, as the colon segment is large and thick-walled
• A suitable choice when there is not enough penile tissue for inversion

Labiaplasty and Clitoroplasty

Alongside the techniques above, labiaplasty and clitoroplasty refine the external appearance and are carried out as part of the vaginoplasty procedures. For those who want dedicated aesthetic refinement, Nirunda also offers a standalone labiaplasty service. Labiaplasty cost in Thailand varies by technique and individual case, so we recommend a consultation for an accurate quote.

Facial Feminization Surgery (FFS)

Gender affirmation is not only about genital surgery. For many transgender women, the face matters just as much, and FFS facial feminization surgery softens masculine facial features into a more feminine appearance. Depending on your needs, it can include:

• Forehead contouring to reduce the prominence of brow ridges
• Rhinoplasty to refine the shape of the nose
• Cheek augmentation for a fuller appearance
• Lip lift and augmentation
• Jaw and chin reshaping for a softer profile
• Tracheal shave to reduce the Adam's apple

Who are Candidates for FFS?

FFS suits transgender women and non-binary individuals who want their facial features to better match their gender identity. Realistic expectations and good overall health matter here, and so does emotional support. Mental health care is a valuable part of the process, not an afterthought.

Female-to-Male (FTM) Surgery in Thailand

Transition looks different for transgender men, and Nirunda also supports female-to-male patients. FTM surgery moves the body toward a masculine appearance and can include chest surgery and genital reconstruction. As with MTF care, the journey usually unfolds in stages.

FTM Top Surgery

For many people, FTM top surgery in Thailand is the first and most affirming step. FTM top surgery removes breast tissue to create a flatter, more masculine chest contour. A consultation is the best way to discuss the technique and recovery that suit your body.

Phalloplasty in Thailand

For those continuing on to genital reconstruction, phalloplasty in Thailand is typically carried out in stages rather than a single operation. If you are exploring phalloplasty in Bangkok, our team can walk you through the approach and timeline during your consultation, at a pace that feels right for you.

Requirements and Preparation for FTM

Like MTF patients, FTM patients should expect psychiatric approval, hormone therapy, and a pre-operative health assessment in line with Thai requirements. The specific criteria for your case are confirmed during consultation.

Preparation and Surgery Timeline

Once you and your surgeon agree on a plan, preparation begins well ahead of your surgery date. Required documents must reach our clinic one month before MTF surgery, and we follow the Harry Benjamin International Gender Dysphoria Association (HBIGDA) criteria, which ask that you:

1. Obtain two letters recommending SRS from a therapist, psychiatrist, endocrinologist, or general practitioner.
2. Stop hormone treatment before surgery to reduce blood clot risk. Oral tablets stop 2 weeks before, injectables 4 weeks before, oral antiandrogen 3 days before, and injectable antiandrogen 4 weeks before.
3. Complete a physical check-up within 3 months of surgery, passing the required blood tests, chest X-ray, and ECG.
4. Avoid smoking, aspirin, anticoagulants, ibuprofen, and vitamin E for at least 10 to 14 days before surgery.
5. Note that HIV patients are accepted, with an additional 30% cost for disposable instruments.

To give you a sense of what your time in Bangkok looks like, here is a sample MTF schedule:

• Day 1: Arrive in Bangkok
• Day 2: Interview, document check, admission, and surgery (5 to 6 hours)
• Day 3 to 5: Recovery with monitoring and pain management
• Day 6: Removal of packing and catheter
• Day 7 to 14: Rest and recovery
• Day 15: Light activities allowed
• Day 16: Stitches removal and final examination
• Day 17: Departure from Bangkok

Recovery, Results, and Long-Term Care

Healing takes time, and knowing what to expect can ease a lot of the worry that comes with it:

• Plan to stay in Bangkok for 10 to 14 days, then allow about 4 to 6 weeks at home before returning to work.
• Results are visible almost immediately, with the final outcome developing over several months.
• You may notice numbness and a firm feeling at the skin's surface, which settles over time.
• Incision lines can take a year or more to fade. They are permanent but can usually be hidden by most clothing and swimwear.
• As with any major surgery, risks include infection, bleeding, scarring, and complications related to anesthesia. Your surgeon will talk these through with you honestly before you decide.

Cost of Sex Reassignment Surgery

It is natural to want clarity on cost early on, and the honest answer is that there is no single fixed price. The total depends on the procedures involved and the details of each individual case. Factors that shape the final figure include:

• The type of surgery, such as MTF vaginoplasty, FFS, labiaplasty, FTM top surgery, or phalloplasty
• The surgical technique used and the complexity of the case
• The length of hospital stay and aftercare required
• Additional needs, for example the added cost for disposable instruments for HIV patients

One reason many international patients choose Thailand is value. Surgery here is generally more affordable than comparable procedures in the United States, the United Kingdom, Australia, and much of Western Europe, while still being carried out by qualified, experienced surgeons. Since every transition plan is unique, the clearest way to understand your own cost is to book a consultation for a quote based on the procedures you choose.

Sex Change by Dr. Poonpissamai

Choosing a surgeon is one of the most important decisions you will make, and sex change by Dr. Poonpissamai pairs strong academic credentials with years of hands-on experience. Dr. Poonpissamai Suwajo is a Doctor of Medicine graduate of Chulalongkorn University, where she now lectures, and a member of the Thai Board of Plastic and Reconstructive Surgery at King Chulalongkorn Memorial Hospital. She completed her fellowship in General Surgery at Khon Kaen University's Srinagarind Hospital.

Your Journey Starts with One Conversation 

There is no pressure to have everything figured out today. A consultation is simply a conversation, a chance to ask questions, understand your options, and get a clear picture of what your path could look like. When you feel ready, reach out to Nirunda Clinic in Bangkok by phone, email, or through our online consultation form, and we will take it from there together.

Disclaimer: All results and recovery timelines described on this page are indicative and vary by individual. They are provided for general informational purposes and do not constitute medical advice or a guarantee of outcome. A consultation with a qualified physician at Nirunda Clinic is required to determine your suitability, expected results, and associated risks.