Dr. Ravis Tivitmahaisoon

Dr. Ravis Tivitmahaisoon (Thai: รวิศ ติวิธมไหศูรย์) is a Bangkok urologist who works with the gender-affirming surgery team at Kamol Cosmetic Hospital in Wang Thonglang. Kamol's English profile names his current post as 'Urologist, Gender-Affirming Surgery Team', and the Thai version of the same profile dates it from 2022. His specialist qualification is the Thai Board of Urology, for which he trained in the Division of Urology at Rajavithi Hospital. He is not a plastic surgeon: in Kamol's doctor directory he sits in the General Surgeons and Specialist Surgeons group, apart from the hospital's plastic surgeons.

Kamol's profile lists these areas of expertise for him:

• Genital reconstruction surgery
• Transgender urological care (MTF and FTM procedures)
• Urethral lengthening and stricturoplasty
• Functional and aesthetic urogenital surgery
• Urinary tract and pelvic floor management

The profile summarises his contribution as reconstructive and functional urology for transgender patients undergoing bottom surgery. Read together, the list points to the urinary side of genital surgery: the urethra, how urine is passed after the operation, and the problems that can affect it. Nothing on the profile presents him as the surgeon who leads a whole phalloplasty, metoidioplasty or vaginoplasty.

Which procedure we list for him, and why only one. On ThaiCosmeticSurgery.com an operation appears on a surgeon's profile only if an official page names that operation for that person. For Dr. Ravis, the named operation is urethral lengthening, taken from his listed expertise. 'Genital reconstruction surgery' and 'transgender urological care' are real entries on his profile, but neither identifies a particular operation, so vaginoplasty, metoidioplasty and phalloplasty are not attached to his name here. Kamol Cosmetic Hospital does offer all three, and its gender-affirming team combines plastic surgeons with gynaecologists, colorectal surgeons and other specialists. Our provider research methodology page describes those checks in full.

If you are planning masculinizing genital surgery in Bangkok and would like a urologist to explain the urethral part of the plan, you can request a consultation with Dr. Ravis Tivitmahaisoon. Our patient team forwards the request to Kamol; the hospital then offers a time, and only its confirmation fixes the appointment.

The facts in this section come from Dr. Ravis's English and Thai profiles on the Kamol Cosmetic Hospital website, both reopened by our reviewer on 27 September 2026. Dates follow the hospital's own presentation.

• Doctor of Medicine, 2009–2015. Faculty of Medicine, Ramathibodi Hospital, Mahidol University.
• Internship, 2015–2016. Phetchabun Hospital.
• Urology training, 2018–2022. Division of Urology, Rajavithi Hospital, completed with the Thai Board of Urology (วุฒิบัตรสาขาระบบทางเดินปัสสาวะ), the Thai specialist certificate in urology.

Between the internship and urology training he spent two years as a general practitioner at Khao Kho Hospital in Phetchabun, covered under his career below. Urology is the surgical specialty of the urinary tract, which is what makes a urologist's training relevant to the urethral stage of gender-affirming genital surgery.

Professional memberships listed on his Kamol profile

• Thai Urological Association under the Royal Patronage (TUA): member from 2022 to the present. The association has no public member list we could search, so the hospital profile is the only source for this.
• RCST Fellowship (Royal College of Surgeons of Thailand): from 2022 to the present, as published. When we ran the College's public member search on 27 September 2026 it returned no match for his name, so this fellowship is shown as a hospital statement that we have not been able to verify ourselves.

Gaps in the record. The profile does not mention a separate fellowship in gender-affirming surgery or reconstructive urology, and our PubMed author search returned no articles by him. If specific training in urethral reconstruction for transgender patients weighs on your decision, raise it at the consultation. 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. Anyone can search that register, so you can look him up there, or ask Kamol to supply his licence number.

Kamol's profile lists the posts Dr. Ravis has held since his internship:

• 2016–2018: General practitioner, Khao Kho Hospital, Phetchabun (spelt 'Khaokho Hospital' on the profile).
• 2022–2024: Instructor of Urology, Mae Fah Luang University Hospital, Chiang Rai.
• 2022 to the present: Urologist, Gender-Affirming Surgery Team, Kamol Cosmetic Hospital, Bangkok. The Thai profile gives the start as B.E. 2565, which is 2022.
• From 2024: Urologist, Bhumirajanagarindra Kidney Institute Hospital, Bangkok, shown on the Kamol profile as ongoing.

Two of these entries come with caveats. The Kidney Institute's own doctor directory did not include him when we looked on 27 September 2026, and the address of his former profile on the Institute's website now returns a 'page not found' error. For that reason we do not present the Institute as somewhere you can currently see him, and requests sent through our patient team go to Kamol Cosmetic Hospital. The Mae Fah Luang teaching post rests on the Kamol profile alone.

His place in Kamol's team. Besides its plastic surgeons, Kamol Cosmetic Hospital publishes profiles for a group of other specialists who take part in gender-affirming operations. The hospital's listings include Dr. Apichart Jaideecharoen and Dr. Pittaya Vapattanawong, gynaecologists involved in removing the internal reproductive organs of trans men; two colorectal surgeons who take part in bowel-based vaginoplasty, Dr. Charnjiroj Thiptanakit and Dr. Kasidin Vitoopinyoparb; Dr. Danai Meekaewkunchorn, who performs open colon vaginoplasty; and Dr. Tharatip Likkasittipan, whose practice centres on gender-affirming voice surgery. Dr. Ravis is the urologist in that group. The hospital's founder and chief plastic surgeon is Dr. Kamol Pansritum.

In practice, a single genital operation at Kamol can involve more than one specialist. Establish early who leads your operation, who is responsible for the urethral stage, and whom to contact if a urinary problem appears once you have left Bangkok.

Dr. Ravis's documented work sits inside larger gender-affirming operations, so each part below sets out what his profile lists and how it connects to the operation you may be planning. The general statements come from our own procedure guides; they describe what usually happens, not how he personally operates, and your own suitability for any of it needs a personal clinical assessment.

Urethral lengthening (his documented procedure)

In general, urethral lengthening carries the urethra through a newly created phallus, usually so that a person may be able to urinate standing. It is rarely planned as a stand-alone operation. It is normally part of metoidioplasty, which forms a small phallus from the clitoris after it has enlarged on testosterone, or of phalloplasty, which builds a larger phallus from forearm or thigh tissue. Kamol Cosmetic Hospital describes both routes: its account of a full metoidioplasty includes bringing the urethra out at the phallus tip, and its phalloplasty service can include a lengthened urethra.

Points patients usually weigh:

• It is where most complications arise. Our guides note that the most common problems after metoidioplasty and phalloplasty involve the lengthened urethra: fistulas (leaks) and strictures (narrowing), which may need further surgery.
• It is a choice, not a requirement. Our phalloplasty guide notes that some patients decide against a lengthened urethra precisely to lower the complication risk, and a simple metoidioplasty (release only) is shorter, with fewer urinary complications. Standing urination matters a great deal to many people; balancing it against the added risk is a central part of the discussion.
• A catheter is part of recovery. After metoidioplasty with urethral lengthening, a urinary catheter often stays in for one to three weeks, and your time in Thailand may need to stretch to match.
• Preparation can start well ahead. When phalloplasty uses skin from the donor area to line the new urethra, that area often needs permanent hair removal beforehand.

On our site, Dr. Ravis is listed for urethral lengthening, while Kamol's plastic surgeons are the ones listed for the phallus-building operations: Dr. Kamol Pansritum appears on our metoidioplasty and phalloplasty pages, and Dr. Akaradech Attainsee on our phalloplasty page. Kamol confirms which surgeons take part in your own operation.

Stricturoplasty

His profile pairs urethral lengthening with stricturoplasty. A stricture is a narrowing of the urethra, and stricturoplasty is surgery that widens or reconstructs the narrowed segment. Because strictures are one of the recognised complications of urethral lengthening, this is the part of his listed expertise to mention if you already have a narrowed urethra or a leak after previous genital surgery. Whether he accepts people first operated on at another hospital is not stated on his profile; Kamol answers that after looking at your records.

Urological care across feminizing and masculinizing surgery

Kamol lists 'transgender urological care (MTF & FTM procedures)' without naming operations, so what follows is context rather than extra procedures on his record. For trans men, the urethra is central to metoidioplasty and phalloplasty, and scrotoplasty is often planned in the same programme. For trans women, vaginoplasty involves the urinary tract too: our guide describes a urinary catheter during the hospital stay and lists urinary issues such as spraying or narrowing among the possible complications. If you are having genital surgery at Kamol and have questions about urination before or after it, ask whether Dr. Ravis will be involved in your care.

Functional and aesthetic urogenital surgery; urinary tract and pelvic floor management

These two entries appear on his profile as broad areas, again without named operations, and we have no procedure pages that correspond to them. If your concerns are about bladder function, continence or pelvic floor symptoms connected with gender-affirming surgery, describe them in your request so Kamol can tell you whether a consultation with him is the right starting point.

A consultation with a urologist is most useful when it concentrates on the urinary side of your plan. The questions below are grouped so you can send some in advance and keep others for the meeting itself, whether it takes place online or in person at Kamol.

Your team and who does what

• Who will lead my operation, and what exactly will Dr. Ravis do during it?
• Will I see Dr. Ravis before surgery and at the post-operative checks?
• If a leak or narrowing appears after I go home, who reviews it: Dr. Ravis, the surgeon who led the operation, or both?

Whether to lengthen the urethra

• Given my anatomy and goals, is urethral lengthening advisable for me, and what are the alternatives, such as a simple metoidioplasty or phalloplasty without lengthening?
• How likely is it that I will be able to urinate standing, and what changes if I have a complication?
• If I decide against lengthening now, could it be considered later?

Risks and outcomes

• What are the team's own rates of fistula and stricture after urethral lengthening, and how many patients need a further operation? Our phalloplasty guide advises requesting these figures directly from the team.
• How are strictures and fistulas treated, and which parts of that care can be done in Bangkok rather than at home?

Catheter and recovery

• How long will the catheter stay in, and will I leave the ward with it?
• Who checks it while I recover at K Garden, and where is it removed?
• When will I be cleared to fly home?

Eligibility and preparation

• Our guides note that surgeons generally work to WPATH SOC-8 (Standards of Care, Version 8), with a documented assessment and usually a period of hormone therapy before metoidioplasty or phalloplasty. What does Kamol require from me, and in what form?
• Do I need hair removal before surgery, and on which area?
• Should hysterectomy and oophorectomy, vaginectomy or scrotoplasty happen in the same stay or on a separate trip?

After you return home

• Can Kamol give me an English-language summary of what was done, for my urologist or family doctor at home?
• How does the team handle complications that appear after I have left Thailand?

Kamol Cosmetic Hospital is the only facility where we could document Dr. Ravis's current work, so the practical details below are Kamol's, taken from the hospital's own website.

Address. Kamol publishes its location as number 1223, Lat Phrao 94, Inthraphon Rd., which lies in the Wang Thonglang district of Bangkok (postcode 10310).

JCI status. When our team looked Kamol Cosmetic Hospital up on 27 September 2026, the JCI (Joint Commission International) search tool returned it with the decision 'Accredited'; its entry has no expiry date.

Facilities relevant to urological care. According to Kamol's Thai-language facilities page, the 4th floor holds seven operating rooms, with a dedicated room for microsurgery and a separate endoscopic suite. Next to the theatres is a recovery area with eleven monitored beds, and patients stay afterwards in private rooms on floors 5 and 6. On the 2nd floor, a diagnostic centre offers ultrasound, X-ray, ECG, cardiac stress testing and an in-house laboratory, so the tests needed before an operation can be done without leaving the building.

Before you arrive. Patients who cannot come to Bangkok yet may ask Kamol for a secure video call with a surgeon, so the urinary side of the plan is discussed before any flights are booked. Each consultation request is given a personal representative, and Kamol keeps an international telephone line for questions, including urgent ones. The hospital also helps with hotel bookings and airport transfers, and says it is able to extend a medical treatment visa.

Recovery after discharge. After discharge, recovery continues at K Garden, serviced apartments run by Kamol a short distance from the building. Kamol's recovery page says wound dressing, stitch removal and follow-up with the surgeon continue there. On departure day the hospital offers a limousine to the airport.

Length of stay (general guidance). Our procedure guides put a typical metoidioplasty trip at 14–21 days in Thailand, with extra time if a catheter is still needed after urethral lengthening. For phalloplasty, plan on three to four weeks in the country for the first stage alone, and the complete programme usually needs two or three separate operations over at least a year, so expect more than one trip. Keep your return date open; the surgical team decides when you are fit to fly.

Languages and payment. Kamol's contact page says its staff communicate in English and Thai, with an interpreter available for other languages if you ask for one. Dr. Ravis's profile does not list the languages he himself speaks. Kamol accepts payment by card (credit or debit) or bank transfer, and cash is taken in six currencies (THB, GBP, EUR, USD, CAD and AUD).

Aftercare at home. Urinary problems such as a leak or a narrowing can surface after you get home, so line up a doctor or urologist in your own country before you travel, and ask Kamol for English operation notes before you fly home.

Urological advice depends heavily on your history, so a clear summary saves time on both sides. Send what you have; if something is missing, say so rather than holding back your request.

For everyone

• Your goal in a sentence or two: which operation you are considering and whether standing urination matters to you.
• Hormone therapy: the medicine and dose, and the date you began it.
• Assessment letters: any letters or reports from the health professionals who assessed you, since surgeons generally work to the WPATH SOC-8 guidelines.
• General health: medical conditions, current medicines, allergies, previous operations and any problems with anaesthesia.
• Smoking: say whether you smoke; our phalloplasty guide notes that not smoking is essential for flap survival.
• Travel window: the months you could come to Bangkok and how long you can stay.

If you have had genital surgery before or have urinary symptoms

• Operation notes from any previous genital surgery: where and when it was done, and the technique used.
• A description of your symptoms: for example urine leaking from somewhere other than the tip, a narrowed or weak stream, spraying, repeated infections, or times you have needed a catheter.
• Test and imaging reports you already have, such as urine tests or scans, with their dates.
• Treatment so far: catheters, dilation or any earlier repair.

If you are planning phalloplasty

• Ask early whether hair removal on the donor site is needed if the urethra will be built from it; it has to be completed before surgery and takes time.

Photos

Clinical photos of the genital area are sensitive. You do not need them to make an initial request through our patient team; send them only if Kamol asks, and through the channel the hospital specifies.