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Early sex reassignment surgery[edit]

As Singaporean gynaecological surgeons became more skillful, leaders in the field like Prof. S Shan Ratnam were authorised to perform male-to-female sex reassignment surgery (SRS) at Kandang Kerbau Hospital. The first such operation in Asia took place here in July 1971. However, before patients could go under the knife, they first had to subject themselves to an exhaustive battery of tests and be given a clean psychological bill of health by chief academic psychiatrist Prof. Tsoi Wing Foo.

Straits Times reporter Chua Meng Choo provided an exhaustive account of the first sex-change surgery done in 1971[1]:

"The first sex change surgery in Singapore was successfully performed on 30 July 1971 at the Kandang Kerbau Hospital. The operation involved a 24-year-old man and was the first procedure of its kind performed in Singapore and in Asia. There had been previous “sex change” operations performed in Singapore, but these mostly involved patients who had both male and female genitalia (hermaphrodites) and the removal of one set of genitalia. The 1971 operation was regarded as a first because it involved a surgical conversion aimed at functionally changing a person’s sex.

Patient and diagnosis

The patient was a 24-year-old Singaporean citizen of Chinese heritage. Her name was kept secret, but her background was later made public in a book. The eldest son in a family of five with two younger sisters, her father was a dentist who was often physically violent with his wife, which caused the patient psychological trauma. As a child, the patient was raised by her grandmother, who dressed her as a female. In her teenage years, she associated with other cross-dressers before frequenting the transsexual and transvestite scene at Bugis Street as an adult.

From the age of 16, she worked as a sales assistant, a housemaid, in a bank and as a public relations officer. She later won second prize in a beauty contest and became a model. While working as a part-time model, she joined a cabaret and was known as “Mama Chan”. She also ran a social escort service.

Having lived as a woman for some time, she first consulted Professor S. S. Ratnam, a senior lecturer in the University of Singapore’s Department of Obstetrics and Gynaecology, in 1969. She had been suffering sexual and emotional problems, which had led to two suicide attempts. Ratnam explained to her that he had no experience in sex change surgery, but she continued to visit his clinic weekly. After researching the subject of transsexualism and sex reassignment surgeries, Ratnam familiarised himself with the surgical techniques by practising on cadavers.

The patient underwent a psychological analysis by a team of psychiatrists who confirmed that she was a transsexual who required surgery. A diagnosis of transsexualism requires that the patient possesses a continuous sense of inappropriateness about his or her anatomic sex, a desire to discard his or her genitalia and live as a member of the opposite sex, and the absence of physical intersex symptoms or genetic abnormalities. As well, his or her gender confusion (gender dysphoria) must not be caused by other disorders such as schizophrenia. The patient was also cautioned that the surgery would be irreversible, potentially involved a number of complications and required a prolonged follow-up period.

Legal clearance for the operation was then sought from the Ministry of Health and granted. After consideration of the patient’s psychological profile, the medical expertise involved and the approval of the Ministry, the decision was taken to proceed with the operation.

Operation and impact

The operation was performed by Ratnam and two other surgeons from the University of Singapore’s Department of Obstetrics and Gynaecology, Associate Professor Khew Khoon Shin and plastic surgeon R. Sundarason. Photography of the operation was not permitted. Ratnam later described the three-hour operation as a success, with an uneventful post-surgery recovery. He later founded the Gender Identity Clinic specialising in sex change surgeries at the National University Hospital.

After her successful operation, the patient went on hormone treatments and was functionally a woman, with the exception of being unable to conceive or menstruate. She later married a French man and owned a travel agency in Paris, before moving to England.

The July 1971 operation paved the way for sex change surgeries in Singapore and in the region. Singapore’s first sex change operation on a woman took place three years later, between August 1974 to October 1977 (female-to-male conversions are a more complex process and involve several surgical stages). In the 1970s and 1980s, hospitals in Singapore accepted numerous sex change patients from other Southeast Asian countries, with foreigners making up around half of all surgeries performed."

Cessation of sex reassignment surgery[edit]

Sex change operations dwindling in Singapore Tuesday, Dec 30, 2014 The Straits Times By Hoe Pei Shan

Thirty years ago, Singapore became a global destination for sex-change surgery, with public hospitals dealing with hundreds of cases every year.

Now, such operations in public hospitals here have ceased since last year, forcing transgender people wanting sex-reassignment to look to Thailand and South Korea.

The National University Hospital (NUH), believed to be the last public hospital to do sex-change surgery, said it no longer offers the procedure. It did not give a reason, and the Ministry of Health (MOH) also did not reply specifically when asked about the issue.

The only known surgeon still performing sex-change surgery here in private practice - Dr Colin Song of Cape Clinic which opened in the middle of last year - said that "one known concern" surrounding sex change has been the spread of HIV.

It was reported previously that the authorities here asked hospitals to phase out sex-change surgery in the late 1980s for fear that hospital staff might be exposed to the virus. It was also reported then that MOH had not considered sex-change surgery as a life-saving procedure. The objection was lifted in 2001.

When asked about the ministry's current stance on sex-change surgery, its role in overseeing the procedure, and why public hospitals have stopped offering it, an MOH spokesman would only say that "sex reassignment operations are not subsidised and are performed with... safeguards".

Demand, however, has not shrunk, according to private psychiatrist Tsoi Wing Foo, who co-wrote a book on transsexualism here with Singapore's pioneer sex-change surgeon, the late Dr S. S. Ratnam.

Since 1971, Dr Tsoi has seen over 2,000 transgender patients, half of whom go for surgery. A psychological assessment is needed before sexual reassignment here. During the 1970s and 1980s, he had roughly 30 cases a year. In the last seven years, he has seen an average of 40.

He does not know why surgery options here are dwindling, but speculated that it could be due to public policy changes or the personal preferences of the few doctors who have taken on such surgery. Dr C. Anandakumar, who had worked with his uncle, Dr Ratnam, declined to speak to The Sunday Times.

Dr Song of Cape Clinic specialises in female-to-male operations and had previously worked at the Singapore General Hospital.

A male-to- female operation at Cape costs $55,000, with the reverse being slightly more expensive, said Dr Song.

While NUH declined to reveal its most recent rates, such operations used to cost between $8,000 and $15,000 six years ago.

Dr Song said he has yet to see a patient for full reconstruction since setting up Cape.

Most seek partial reconstruction, such as removing breast tissue, as it changes the outward appearance and is more economical, he said.

The adjunct professor at the Duke-NUS Medical School, who has been performing sex- change surgery for two decades, said high facility costs is the main reason he cannot match the rates public hospitals used to offer.

Eight in 10 patients whom Dr Tsoi has referred for surgery choose to go to Thailand, "mainly because of costs". In Thailand, a full sex change costs around $20,000.

Those who go overseas for surgery may have to do without the immediate support of family and friends right after surgery, while cultural and language differences may affect the quality of post-operative care, said Oogachaga Counselling and Support deputy director Leow Yangfa. Oogachaga provides support for the lesbian, gay, bisexual and transgender group.

Mr Joe Wong, who underwent an operation in Bangkok to become a man, said doctors there were "only concerned about performing the surgery and provided little or no information on post- operative care and follow- up".

The 30-year-old said he knew the risks in having surgery overseas, but with scarce options in Singapore, he had little choice.

This article was first published on Dec 28, 2014.

See also[edit]


  • Chan Meng Choo, "First sex change surgery (1971)", Singapore Infopedia[2].
  • Ho Pei Shan, "Sex change operations dwindling in Singapore", The Straits Times, 30 December 2014[3],[4].
  • Rachel Chan, "Bet you didn’t know that Singapore used to be a hub for sex change ops", The Popping Post, 16 January 2016[5],[6].
  • Chua, M. (1974, November 7). Who really needs a sex-change?. The Straits Times, p. 10.
  • Cheow, X. Y. & Fung, E. (2007, March 7). Born in the wrong body. The Straits Times, p. 114.
  • Fifth sex-change operation a success. (1972, September 11). The Straits Times, p. 6.
  • Kwee, M. (1974, October 20). S’pore’s first sex change woman. The Straits Times, p. 1.
  • Lim, S. (1990, May 20). Legal poser over sex-change transsexuals who get hitched. The Straits Times, p. 21.
  • Ratnam, S. S., Goh, V. H. H., & Tsoi, W. F. (Eds.). (1991). Cries from Within: Transsexualism, Gender Confusion & Sex Change. Singapore: Longman Singapore.

(Call no.: RSING 616.8583 RAT)

  • Second sex change operation in S’pore. (1971, November 5). The Straits Times, p. 15.
  • Sex change man signs statutory declaration affirming that he is now a woman. (1972, April 16). The Straits Times, p. 6.
  • Tan, K. H., & Tay, E. H. (Eds.). (2003). The History of Obstetrics and Gynaecology in Singapore. Singapore: Obstetrical & Gynaecological Society of Singapore: National Heritage Board.

(Call no.: RSING q618.095957 HIS)

  • Tan, W. L. (1971, August 25). Sex change patient has marriage plans. The Straits Times, p. 8.
  • Tan, W. L. (1971, August 31). Man-made woman may not get marriage licence. The Straits Times, p. 6.
  • Tan, W. L. (1971, November 11). They’re still ‘misters’ despite sex change. The Straits Times, p. 8.
  • Why sex-change patients set up homes overseas. (1975, August 10). The Straits Times, p. 5.
  • Yeo, J. (1971, July 31). First sex change surgery in S’pore. The Straits Times, p. 17.


This article was written by Roy Tan.