Preecha Aesthetic Institute (PAI)

Preecha Aesthetic Institute (PAI) (Thai: ศูนย์ศัลยกรรมตกแต่งความงาม พีเอไอ) is a plastic surgery clinic at 898/1 Sukhumvit 55, opposite Thonglor Soi 23, in Bangkok's Watthana district. It was founded by Assoc. Prof. Dr. Preecha Tiewtranon, a plastic and reconstructive surgeon, and it also goes by the short names PAI and PAI Clinic. The clinic describes itself as a multidisciplinary cosmetic and reconstructive surgery centre and as a pioneer of sex reassignment surgery (SRS) in Thailand.

PAI organises its work into four departments: Aesthetic Cosmetics, Facial Feminization Surgery, Sex Reassignment Surgery (MtF surgery) and Sex Reassignment (FTM). Between them, the clinic's official service pages cover male-to-female genital surgery, including penile skin inversion and sigmoid colon vaginoplasty; chest, pelvic and genital surgery for trans men; facial feminization; and cosmetic operations on the face, eyelids, nose, breasts and body.

One detail shapes how a stay at PAI works. The clinic is where consultations, pre-operative medical checks and follow-up appointments take place, and it has its own operating rooms for procedures under local anaesthesia. PAI states that every procedure under general anaesthesia is performed at one of two affiliated private hospitals in Bangkok. In practice, for operations that our procedure guides describe as general-anaesthesia surgery, such as vaginoplasty or a tummy tuck, you meet your surgeon at the clinic on Sukhumvit 55 but have the operation itself at a separate hospital. The accreditation section below sets out what the accreditor databases show for PAI and for those hospitals.

PAI lists 10 consultation rooms, operating rooms for local-anaesthesia procedures and recovery rooms. Its About page and home page give six operating rooms, while its Aesthetic Cosmetics and FFS pages say four. The website is also inconsistent about when the clinic began, so we do not give a founding year: the About page says Dr. Preecha ran Chollada Clinic from 1978 to 2002 and that this led to PAI's establishment in 2002, yet the same page's header reads 'Established in 1980' and the home page carries a 'since 1975' line.

You can request a consultation at PAI through our patient team. We pass your details to the clinic and follow the request up for you; nothing is booked until PAI confirms.

Each of PAI's four departments serves a different group of patients, and the depth of information on the clinic's website varies between them. This is what PAI's own pages describe.

Sex Reassignment Surgery (MtF). This department covers genital surgery for trans women. PAI lists four vaginoplasty techniques: penile skin inversion, penile skin inversion with a scrotal skin graft, sigmoid colon vaginoplasty, and secondary sigmoid colon vaginoplasty, which it presents as revision surgery for trans women. Separate pages cover zero-depth (shallow-depth) vaginoplasty, the option usually called vulvoplasty, and bilateral orchiectomy as a procedure on its own. PAI's sigmoid colon page states that male-to-female SRS at the clinic is today performed by three surgeons: Assoc. Prof. Dr. Preecha Tiewtranon, Dr. Burin Wangjiraniran and Dr. Sutin Khobunsongserm.

Sex Reassignment (FtM). For trans men, PAI describes mastectomy (top surgery) using a keyhole or peri-areolar incision for smaller chests or a double incision with nipple grafts; hysterectomy with removal of the ovaries; and metoidioplasty, which its page says includes a urethral lengthening procedure. The same metoidioplasty page states that PAI does not currently offer phalloplasty. Vaginectomy and testicular implants also appear in the clinic's service menus; if either is part of your plan, ask PAI for details, because we have not documented them.

Facial Feminization Surgery. PAI's FFS department groups brow bossing (brow bone reduction), lower hairline or forehead reduction, tracheal shave (chondrolaryngoplasty), nose reconstruction and nose hump shaving, jaw contouring and chin shaving, and breast augmentation for trans women. The clinic's hairline page describes moving the scalp forward by up to 2 to 2.5 cm.

Aesthetic Cosmetics. The cosmetic department covers eyelid surgery (upper and lower blepharoplasty, double eyelids and repair of a drooping upper eyelid), brow and forehead lifts, full and mini facelifts, neck lift, nose augmentation with a silicone implant and/or ear cartilage, tip plasty, alar reduction, cheek, chin and jaw implants, chin shaving, jaw reduction, buccal fat removal and ear pinning. For the breast it lists augmentation with implants, revision augmentation (including correction of capsular contracture), implant removal, breast lift with or without implants, breast reduction and male breast reduction for gynecomastia. Body procedures include liposuction and VASER liposuction, full and mini tummy tuck and arm lift, and the department also offers labiaplasty and hair transplant by the FUT (strip) method. PAI's pages mention dimple creation and inverted nipple correction as well.

Where a general anaesthetic is needed, PAI's own rule sends the operation to an affiliated hospital; some smaller procedures can be done in the clinic's local-anaesthesia rooms. Which of the two applies to your operation is something PAI confirms when it sets your plan.

PAI's doctor directory currently lists five surgeons, and its About page names one more in the clinic's surgical team. The first three below are the surgeons PAI's service pages name for its operations, including male-to-female SRS.

[Assoc. Prof. Dr. Preecha Tiewtranon](/doctor/preecha-tiewtranon/) (ปรีชา เตียวตรานนท์) founded PAI and is listed as a plastic and reconstructive surgeon. He studied medicine at Chulalongkorn and trained in surgery in the United States, with residencies at New York Hospital, Providence Hospital in Southfield, Michigan, and Roswell Park Memorial Institute in Buffalo, where he was also a fellow in surgical oncology. Further plastic surgery training followed with Albany Plastic Surgeons Associates in New York and at the Victorian Plastic Surgery Unit in Melbourne. His profile lists American Board of Surgery certification (1973) and the Thai boards in general surgery and in plastic and reconstructive surgery. He formerly chaired the Plastic Surgery Unit at Chulalongkorn Hospital Medical School and has served as president of both the Society of Plastic and Reconstructive Surgeons of Thailand (ThPRS) and the Society of Aesthetic Plastic Surgeons of Thailand. The Asian Professional Association for Transgender Health (AsiaPATH) lists him as its immediate past president. His documented interests are male-to-female surgery with the penile skin inversion technique, facial contouring and FFS, and revision breast surgery.

[Dr. Sutin Khobunsongserm](/doctor/sutin-khobunsongserm/) has been a plastic surgeon at PAI since 2011, according to his PAI profile, and also practises at W Plastic Surgery Hospital. He studied medicine at Chulalongkorn University (1985 to 1991), then completed residencies in general surgery (1994 to 1997) and plastic and reconstructive surgery (1997 to 1999) at King Chulalongkorn Memorial Hospital, and holds the Thai board certifications in both. His profile also lists the Operation Smile physicians training programme at Eastern Virginia Medical School (2002).

[Dr. Burin Wangjiraniran](/doctor/burin-wangjiraniran/) qualified in medicine at Chulalongkorn University in 1994 and trained in general and plastic surgery at Chulalongkorn Hospital. His PAI profile lists Royal College of Surgeons of Thailand board qualifications in general surgery (2000) and plastic surgery (2002). Besides PAI, he is listed at the Beauty Center of Phyathai 2 Hospital, one of the two hospitals shown in PAI's hospital gallery.

ThPRS and the Royal College of Surgeons of Thailand both include all three in their member directories. PAI's service pages name them together for most procedures, from vaginoplasty and FFS to rhinoplasty, breast surgery and liposuction. Jaw augmentation with implants is the exception: that page names only Dr. Sutin and Dr. Burin. The pages for metoidioplasty, hysterectomy, hair transplant, breast implant removal and drooping-eyelid (ptosis) surgery do not name the operating surgeon, so ask who would perform them. With several surgeons listed on the same pages, it is also reasonable to ask who will personally operate on you and who will see you at follow-up.

The team has published its genital technique: Dr. Burin is first author, with Dr. Preecha, Dr. Sutin and Dr. Prayuth as co-authors, of 'Male-to-female vaginoplasty: Preecha's surgical technique' (Journal of Plastic Surgery and Hand Surgery, 2015), which carries PAI's affiliation.

Other surgeons PAI names

• [Assoc. Prof. Dr. Prayuth Chokrungvaranont](/doctor/prayuth-chokrungvaranont/) is named in the surgical team list on PAI's About page, where his title appears as Asst. Prof. His former PAI profile records a medical degree from Chulalongkorn University (1982), plastic and reconstructive surgery residency at Chulalongkorn University Hospital, the Thai Board of Plastic Surgery (1988) and appointment as associate professor at Chulalongkorn in 2001. He has no profile in PAI's current doctor directory, so ask our patient team to confirm he is seeing patients at PAI before you plan around him.
• [Assoc. Prof. Dr. Sirachai Jindarak](/doctor/sirachai-jindarak/) is listed in PAI's doctor directory as a plastic surgeon at PAI. Our own profile of him lists the other hospitals where he practises.
• [Prof. Apichai Angspatt](/doctor/apichai-angspatt/) is listed in PAI's directory among its plastic and reconstructive surgeons under the title Assoc. Prof. Dr.; Chulalongkorn University's Department of Surgery now gives his title as Professor. His PAI profile cites the Thai Board of Plastic Surgery (1993), and our profile covers his practice at King Chulalongkorn Memorial Hospital and Bumrungrad International Hospital.

We have not documented which procedures Dr. Sirachai or Prof. Apichai perform at PAI. If you would like to see either of them there, ask our patient team to check with the clinic first.

Each procedure below is one PAI's official pages say it offers, linked to our guide. The notes after each group are general guidance from those guides, not PAI's own protocols; your surgeon's plan comes first.

Male-to-female genital surgery: vaginoplasty, penile inversion vaginoplasty (including PAI's variation with a scrotal skin graft), colon (sigmoid) vaginoplasty, revision vaginoplasty by secondary sigmoid colon surgery, vulvoplasty and orchiectomy.

In general, vaginoplasty is major surgery under general anaesthesia: our guide gives five to seven nights in hospital as common, with the whole trip to Thailand usually lasting three to four weeks, and regular dilation is then needed for the long term to preserve depth. Hair removal is worth planning early, because many surgeons ask for permanent removal of hair on the skin that will line the new canal and that can take months. Many surgeons also work to the WPATH Standards of Care, Version 8 (SOC-8), which suggest a minimum of six months on hormones before genital surgery, unless hormone treatment is clinically unsuitable or not wanted. Colon vaginoplasty, which lines the canal with a segment of bowel, tends to be kept for specific circumstances such as a revision or a shortage of skin. Vulvoplasty forms the vulva without creating a canal, so there is no dilation afterwards. At PAI, the operation and hospital stay take place at the affiliated hospital, and later checks return to the clinic.

Surgery for trans men: top surgery by keyhole, periareolar or double-incision technique, hysterectomy and oophorectomy, metoidioplasty and urethral lengthening.

For top surgery, patients usually plan 10 to 14 days in Thailand so drains can come out and nipple grafts can be checked; the technique is matched mainly to chest size and how elastic the skin is. SOC-8 does not make hormones a precondition for chest surgery, but a given surgeon can still set conditions of their own. Most people travelling for metoidioplasty remain in Thailand for two to three weeks, and for longer if the catheter has to stay in after urethral lengthening. Some time on testosterone beforehand is usual because the operation depends on hormone-driven growth. Since PAI does not currently offer phalloplasty, raise any long-term plans for it at your first consultation.

Facial feminization: facial feminization surgery, forehead contouring and brow bone reduction, hairline advancement and hairline lowering, tracheal shave, feminizing rhinoplasty, jaw and chin feminization and gender-affirming breast augmentation.

FFS plans often combine several procedures, in one operation or in stages, and surgeons commonly request a CT scan before bone work on the forehead, jaw or chin. Plan on roughly 10 to 14 days in Thailand, more when several procedures are combined. Swelling mostly fades within weeks, while numbness and a little residual swelling can linger for months.

Nose, eyelids and face: rhinoplasty, Asian (augmentation) rhinoplasty, tip rhinoplasty, alar base reduction, blepharoplasty (upper and lower), double eyelid surgery, ptosis correction, brow lift, facelift, mini facelift, neck lift, cheek augmentation, chin augmentation, chin reduction, jaw contouring, jaw enhancement, buccal fat removal and otoplasty.

As a rough guide, eyelid surgery usually means five to seven days in Thailand, rhinoplasty seven to ten days so the external splint can come off before you fly, and a facelift ten to fourteen days. PAI's nose augmentation uses a silicone implant, ear cartilage or both. Our rhinoplasty guide notes that implants and cartilage grafts differ in how they feel, how prone they are to infection and how stable they stay over time, and that an implant which becomes infected or shifts may have to be removed, so ask your PAI surgeon which material fits your nose and the reasoning behind that choice.

Breast: breast augmentation, breast implant revision, capsular contracture correction, breast implant removal, breast lift, breast reduction and gynecomastia surgery.

Breast augmentation is usually done under general anaesthesia, with seven to ten days in Thailand. Breast implants do not last a lifetime, and many people have another operation at some point to exchange or remove them. Before you leave Bangkok, ask for your implant card (brand, size and type) so that any later surgeon, at PAI or at home, knows exactly what was placed.

Body, intimate and hair: liposuction, VASER liposuction, tummy tuck, mini tummy tuck, arm lift, labiaplasty and hair transplant.

Liposuction reshapes areas of stubborn fat rather than reducing body weight, and usually means seven to ten days in Thailand. A tummy tuck usually means 12 to 14 days, and blood-clot prevention deserves attention around the flight home. PAI's hair transplant page describes the FUT (strip) method; if you were expecting another technique, ask before you plan.

We checked the two accreditor databases we use for Thai facilities on 27 September 2026.

• PAI itself: the Joint Commission International (JCI) directory returned no match for 'Preecha' or 'PAI', and HA Thailand's hospital accreditation search returned no record under the clinic's Thai or English name. No accreditation is recorded for PAI on this profile.
• The affiliated hospitals: PAI states that all its procedures under general anaesthesia take place at two affiliated private hospitals in Bangkok, which it describes as JCI-accredited. Images in the hospital gallery on PAI's website are labelled Phyathai 2 Hospital and ViMUT Hospital. The JCI directory shows both as Hospital Program accredited: Phyathai 2 Hospital (943 Phaholyothin Road), whose record displays 24 May 2014 as its effective date, and ViMUT Hospital, whose record is effective from 16 November 2024.

Keep two things in mind. JCI surveyors look at how a hospital is run, for example its infection-control and patient-safety processes, when they visit; a listing says nothing about how any one operation will turn out. And the listing belongs to the hospital where you are operated on, not to the clinic on Sukhumvit 55 where you have your consultations and check-ups. When PAI confirms your plan, ask which of the two hospitals is booked for you, who gives the anaesthetic, and what the arrangement is if you need to stay in hospital longer than planned or need a higher level of care.

Surgeon credentials are a separate question from facility accreditation. The member directories of the Society of Plastic and Reconstructive Surgeons of Thailand and the Royal College of Surgeons of Thailand include Dr. Preecha, Dr. Sutin and Dr. Burin. The licence can be looked up on the Medical Council of Thailand's public register at checkmd.tmc.or.th, and our patient team can help you confirm it before you travel. You can ask PAI for your surgeon's licence number and look it up on the register yourself. Our provider research methodology explains how we verify facilities and surgeons, and why we record only what an accreditor's own database shows.

PAI does not use the term 'international desk', but its contact and service pages describe the following arrangements for patients travelling from abroad. These are the clinic's own services, arranged directly by PAI:

• Airport pickup at Suvarnabhumi: a driver waits at door 4, the meeting point after customs.
• Transfers: between the airport, your hotel, the hospital and the clinic, plus transport within 2 km of the clinic during follow-up. PAI says these are included or optional depending on the package.
• Hotels: help booking rooms at partner hotels near the clinic at corporate rates.
• Interpreters: PAI's service pages say interpreters are available for any language. Its contact page lists English, Thai, Chinese, Japanese, Italian, Spanish, French, German and Turkish.
• Visa support: a letter for your embassy or passport office.
• First consultation by email: overseas patients consult first by email, and the attending physician reviews their details. PAI says it does not offer video consultations.

Because the clinic and the operating hospital are separate places, check which transfers your package covers, especially on the day of surgery and the day you leave hospital. Ask as well who at PAI you contact after you fly home, and request a copy of your operation notes in English to give your own doctor. After genital surgery, when dilation continues for months, that remote support matters as much as the stay itself.

Our patient team works alongside these arrangements rather than replacing them. We pass your request to PAI and follow it up, tell you which photos, documents and medical history the surgeon asks for, and reply with the options the clinic offers, such as dates and next steps. Using our service costs you nothing, and only PAI can confirm a date.

PAI's official address is 898/1 Sukhumvit 55 (opposite Thonglor Soi 23), Wattana, Bangkok 10110, Thailand. The Thai address on the clinic's Thai-language site places it in Khlong Tan Nuea subdistrict: 898/1 สุขุมวิท 55 (ทองหล่อ) ตรงข้ามทองหล่อซอย 23 แขวงคลองตันเหนือ เขตวัฒนา กทม 10110. The map on PAI's contact page is centred at about 13.7374, 100.5839.

Sukhumvit Soi 55 is the road better known as Thonglor (Thong Lo). Thong Lo BTS Skytrain station stands where the soi meets Sukhumvit Road, and the clinic is further up the soi, opposite Soi 23. Giving a driver the clinic's name together with 'opposite Thonglor Soi 23' helps. After surgery, a car door to door is usually easier than public transport, and PAI's follow-up transport within 2 km of the clinic is part of some packages.

The clinic is not where operations under general anaesthesia take place. Phyathai 2 Hospital's JCI record gives its address as 943 Phaholyothin Road, in a different part of Bangkok. PAI's partner hotels are near the clinic, so before booking your own accommodation, find out which hospital you are scheduled at and how many nights you will spend there.

Arriving by air, PAI's pickup point is door 4 at Suvarnabhumi Airport after customs. Confirm your flight details with the clinic so the driver can meet you.

Requesting a consultation at Preecha Aesthetic Institute through ThaiCosmeticSurgery.com works in steps, and no step commits you to surgery.

• Send a request. Use our form to request a consultation at PAI, or choose a surgeon: Assoc. Prof. Dr. Preecha Tiewtranon, Dr. Sutin Khobunsongserm or Dr. Burin Wangjiraniran. Tell us the procedure you are considering, your likely travel dates and any surgeon preference.
• We contact PAI for you. Our patient team passes your details to the clinic and tells you what else the surgeon needs, such as photos, letters or medical history.
• PAI reviews by email. For overseas patients, PAI's first consultation is a written review by the attending physician. The clinic does not hold video consultations, so expect a reply in writing rather than a call.
• Options and dates. We relay what PAI proposes: the plan, the likely hospital, what the package includes and possible dates. It is worth having the treatment plan, the quoted price with what it includes, and the aftercare arrangements set out in writing before you commit.
• In-person consultation in Bangkok. In general, a plan made from photos is provisional until the surgeon examines you. At PAI, that consultation and the pre-operative medical checks take place at the clinic on Sukhumvit 55 before your operation at the affiliated hospital.

We do not charge for a request, and no date is fixed until PAI confirms it. If you are comparing clinics, our Bangkok guide lists other facilities and surgeons in the city.

Because PAI's first step for overseas patients is an email review rather than a video call, what you send largely decides how useful that first answer is. In general, prepare the following.

For every procedure - Age, height and weight, general health, current medicines and supplements, allergies, and whether you smoke or vape. - Previous surgery, especially on the area you want treated, plus copies of any operation notes you kept. - Your intended travel dates and how long you can stay in Thailand. - Any preference among PAI's surgeons.

Vaginoplasty, vulvoplasty or orchiectomy - Your hormone therapy history: what you take and since when. - Assessment letters from your health professionals. Requirements differ between surgeons, and some still want two letters, so confirm what PAI needs. - Your progress with permanent hair removal, if your surgeon asks for it. - Whether you want a vaginal canal or are considering zero-depth surgery. For revision, send the original operation notes, the technique used and what you would like changed.

Facial feminization and tracheal shave - Clear front, side and three-quarter photos without make-up, hair pulled back to show the hairline and forehead. - Your priorities (forehead, hairline, nose, jaw, chin, Adam's apple) and any earlier facial surgery or fillers. - Ask whether PAI wants a CT scan done before you travel or arranges one in Bangkok.

Top surgery, hysterectomy or metoidioplasty - Chest photos from the front and both sides for top surgery. - Your testosterone history, which matters especially for metoidioplasty. - Relevant gynaecological history for hysterectomy, plus any assessment letters PAI requires.

Cosmetic procedures - Photos in even, neutral light: the nose from the front, side and below; eyes open and closed for eyelid surgery; breasts from the front and both sides; body areas from the front, back and sides. - For implant revision or removal: implant type, size and the date of the original operation, and a note of any problem such as firmness or a change in shape. - For hair transplant: photos of the thinning area and the back of the scalp.

Our patient team will tell you if PAI asks for anything else.