STD General Info

As long as you are having sex, you are at risk of STDs.

Unless of course you are in a mutually monogamous relationship. Condoms offer some protection but only abstinence is 100% safe.

Here is a list of some of the common STDs and their symptoms. Please remember that STDs do not produce symptoms all the time. In other words you might have and STD even if you feel 100% completely well. The only way to know for sure is to see a medical professional well trained in STDs and so a STD screening.

Signs, causes, treatments of Sexually Transmitted Diseases (STDs)

Click here for Info on STD Symptoms in Men
Click here for Info on STD Symptoms in Women
Click here for Info on HPV Testing in Men
Types of STDs
STD Syndromes
STD Screening
STD Screening for MSM (Men who have Sex with Men)
STD Questionaire

Types of STDs

1. *Genital warts/Human papilloma virus (HPV)
2. *Gonorrhoea
3. *Chlamydia/Lymphogranuloma venereum
4. Mycoplasma genitaliae
5. Ureaplasma urealyticum
6. Trichomonas vaginalis
7. Bacterial vaginosis/Gardnerella
8. *Hepatitis A/B/C
9. *Syphillis
10. Candidia
11. *Herpes simplex type I/II
12. Molluscum contagiosm
13. Crab lice
14. Scabies
15. Chancroid
16. Granuloma inguinale
17. Tinea cruris
18. Gardnerella vaginalis

STD Syndromes

1. Penile discharges
2. Vaginal discharges
3. Pain during urination
4. Lymph nodes
5. Misc. Lumps and bumps
6. Pain when having sex/Vaginitis
7. Itch in the genital area
8. Genital sores (painful/painless)

This is the commonest STD in Singapore. Unfortunately, 40% to 60% of people do not show any symptoms. Even when symptoms do appear, they are often mild and disappear quickly.

The common symptoms are pain passing urine, discharge from the penis or vagina.

The symptoms can occur as early as 2 days after exposure but in some people it might take months to show symptoms. In 10% of people there are no symptoms at all.

The common symptoms are pain passing urine and a discharge from the penis or vagina.

It very commonly causes no symptoms at all.

The common symptoms are mild discomfort passing urine or a mild discharge.

It very commonly causes no symptoms at all.

The common symptoms usually occur about 3 to 4 weeks after exposure. They are fever, sore throat, rash and swollen lymph nodes.

Click here for more Detailed Information on HIV Symptoms.

It can infect a person for years without showing any symptoms. Sometimes the symptoms are so mild they go unnoticed. For people who do get symptoms, the first time is the worst.

The common symptoms are painful blisters that burst to form painful ulcers. This is usually preceded by a flu-like illness, itching, tingling and pain in the genital area. The first episode is usually very painful and can last up to 3 weeks without treatment.

Hepatitis AB and C
Some people never develop any symptoms. Or the symptoms are so mild that they go unnoticed.

The common symptoms are nausea, loss of appetite, fever, itching, yellowing of the skin or eyes. Smokers sometimes lose their urge to smoke.

Its symptoms can be so mild that they go unnoticed.

The first sign occurs between 9 to 90 days after exposure. It is a painless ulcer where the Syphilis entered the body. It can be on the penis, vagina, rectum, tongue or lips. The ulcer disappears without any treatment which gives patients a false sense of security.

Years later it will surface again as a rash all over the body and fever. If at the time it is still not treated it will affect the brain and major blood vessels of the body causing severe illnesses.

Click here for How and When to test for Syphilis

Molluscum Contagiosum
It commonly appears as discrete pearly round lesions on the skin. They are completely painless but might be itchy.

It commonly appears as skin colored cauliflower like lumps on the skin.

Click here to learn more about HPV vaccines for Men

Scabies and Lice

It commonly causes a lot of itching especially at night. Under good lighting and magnification you can actually catch the Scabies which look like translucent tiny insects.

Note: Please remember that you can catch an STD and show no symptoms. If you feel you are at risk, go for STD screening.

STD Screening

Many STDs can infect you and yet show no symptoms. Or they may stay in your body for months to years before they show any symptoms. You cannot determine that your partner has no STDs just because he or she also has no symptoms. If you have been infected with an STD and show no symptoms you can still pass it on to your partner. Condoms reduce the risk of catching STDs but it is not 100% safe.

As long as you are having sex and you are not in a mutually monogamous relationship, there is a chance you have an STD.

It is advisable to go for a thorough STD screening regularly. STDs that are diagnosed early can be easily cured. Also, you reduce the risk of passing it on to your partner.

If not picked up and treated, STDs can lead to permanent damage of your genital organs and affect your fertility. Some STDs like Syphilis, HIV and Hepatitis can damage other organs in your body leading to major illnesses and even death.

STD testing can be very complicated as there are many tests available for different STDs. Some tests are also time sensitive. Please make sure that you consult Our Doctors who have adequate knowledge and experience in testing for STDs.

We use Gold Standard Certified lab tests that are validated and in line with the highest International Standards for accuracy and sensitivity.

Click here for details on STD Screening for Women

Your STD screen should include tests for the following:

The most accurate test for this STD is a PCR test on your urine or urethral/vaginal swab. Blood tests are cheap but completely inaccurate.

The most accurate test is a PCR test on your urine or urethral/vaginal swab. If you engage in oral sex you might also need a swab of your throat to test for this STD. If you engage in anal sex you might also need a swab of your rectum to test for Gonorrhea.

NSU (Non-Specific Urethritis)
This consists of tests for Ureaplasma, Mycoplasma and Trichomonas. These tests can be conducted on your urine or a urethral/vaginal swab.

HIV tests are very time specific. There are different tests available including HIV RNA PCR, P24 Antigen/Antibody test, HIV Rapid Antibody tests, ELISA Antibody test. Let Our Doctor know when your exposure was and he will advice you accordingly.

Click here for HIV Testing FAQ

There are 2 tests for this STD. They are called VDRL (Venereal Disease Research Lab) and TPHA (Treponema Pallidum Haemagglutination). It is advisable that you have both tests done.

Hepatitis A, B and C
Hepatitis A, B and C are detected through blood tests. You do not need to test for these if you have been vaccinated and previous blood tests have confirmed that you have the antibodies.

Herpes 1 and 2
They can be detected through blood tests.

Certain strains of this STD can be detected through a Cervical Swab for women.

Certain strains can be detected through an anal swab for people who engage in anal sex.

Most other strains of HPV cannot be tested for. Your Doctor will examine your genital area thoroughly for warts. The presence of warts indicate an infection with this STD.

Molluscum Contagiosum
Your Doctor will examine your genital area thoroughly for pearly round umbilicated lesions that are an indication of an infection.

Scabies and Lice
Your Doctor will examine your genital area thoroughly for knits and crabs.

Note: Please remember when you collect your urine for STD tests you need to collect the first catch of urine. This is different from regular urine tests when you need to collect the mid-stream. Check with your Doctor if you are unsure.

STD Screening for MSM (Men who have Sex with Men)

MSM stands for Men who have Sex with Men. There are many other terms used to describe MSM such as Gay Men and Homosexual Men. These are unhelpful labels which might not apply to you. If you are a man and ever have had sex with another man then there are specific STD concerns that apply to you.
The fact is MSM are at a higher risk for HIV and other STDs such as Syphilis, Gonorrhea, Herpes and Warts. There could be several reasons for this. First, the anal canal is not designed for sex. There is a greater chance of tearing and bleeding of the anal canal during sex. This increases the chance of catching HIV and other STDs. Secondly, because many safe sex campaigns are targeted at MSM, this can lead to ‘safe sex burnout’. This results in MSM not taking the usual precautions and protection during sex.

STD and HIV screening in MSM must be conducted in a rational, scientific and non-judgemental fashion. Also, it takes unique experience, skill, techniques and testing procedures to properly screen for STD and HIV in MSM. Our Doctors are specially trained to provide all these services to you in an absolutely discrete setting.

STD and HIV screening is recommended to be conducted at least once a year for MSM. In fact, for MSM of higher risk, screening every 3 to 6 months is recommended. Aside from the regular HIV and STD screening, MSM must take extra careful note of the following:

HIV Screening for MSM

Statistically MSM are at a significantly higher risk of HIV. HIV testing is recommended every 3 to 6 months. The Doctor will recommend different HIV tests depending on the time of exposure.


HIV PEP (Post Exposure Prophylaxis) is a course of medicines that if taken within 72 hours of exposure to HIV has up to a 90% chance of preventing HIV infection. If you have had unprotected anal sex and think you are at risk of HIV, speak to our doctors immediately about HIV PEP.


HIV PREP (Pre-Exposure Prophylaxis) is a course of medicines taken before exposure to HIV that has up to a 90% chance of preventing HIV infection. If you think you might be in a situation that you might be exposed to HIV, speak to your Doctor about HIV PREP. These situations are usually events or parties that involve the use of recreational substances.


It is a serious disease that can lead to blood vessel and brain damage. The initial symptom is a painless ulcer that can be in the anus and therefore not easily seen. Early detection can lead to a complete and early cure.


Aside from screening from the penis, MSM who have receptive oral or anal sex should also test for this STD from the Throat an Anus/Rectum.

Click here for more info on Throat Gonorrhea
Click here for more info on Rectal Gonorrhea

It is the most common STD in Singapore. Aside from screening from the Penis, MSM who have anal sex should also test for this STD from the Anus/Rectum.

It is a common STD and an essential part of STD screening.

Hepatitis A, B and C
The prevalence of Hepatitis A, B and C among MSM is high. Vaccination is a very cost effective way to prevent such infections. If you already have been vaccinated, speak to your Doctor about doing a serologic test to ensure the antibodies are enough.

Peri-Anal Warts
They are very common in MSM who have receptive anal sex. It is caused by the HPV virus. There is no blood or urine test for this. Doctor will have a check on your peri-anal area carefully for the presence of warts.

HPV and Anal Cancer
Certain strains of HPV will not cause warts but might increase the risk of Anal Cancer. This is more so in MSM who also suffer from HIV. Speak to your Doctor about doing an anal swab fro cancer causing HPV and anal cancer.

Singapore might be a conservative society and the 377A penal code might still be in force. But please do not let this worry you. Our Doctors are well trained, respectful and discrete. We are here to help you. Please feel free to discuss any of your problems with us.

STD Questionaire

The questions are used to determine your at-risk status for sexually transmitted diseases (STDs),
including HIV:

  • I have had “sex” without using a condom. YES/NO
  • I have had “oral sex” without using a barrier. YES/NO
  • I have had sexual contact with someone who has had sex with another person other than myself. YES/NO
  • I am in a relationship and neither my partner or myself had been tested for STD. YES/NO
    If you have answered “YES” to any of the questions, you may be at risk for STDs.
Click here to see the full range of our HIV/STD Services

All Our Doctors are Fully Certified and Trained to conduct specialised STD and HIV Testing.

For lady patients who prefer female doctors, we have professional certified female Doctors to attend to your medical needs.

Feel free to visit Our Clinics and speak to Our Doctors to learn more.

We have 5 locations conveniently located at Robertson Walk, Bencoolen Street, Novena, Scotts (Pacific Plaza) and Somerset (H&M)

Robertson Walk          6238 7810 (Anonymous HIV Testing Site)

Bencoolen Street        6884 4119 (Women’s Health Clinic)

Novena                           63972095 (Men’s Health Clinic)

Scotts                              66942348

Somerset                       62620762


We are Open on Saturdays and Sundays.

Click Here for Contact Details, Address and Opening Times.

We are Open on Weekends.

All prices quoted below excludes prevailing GST

Our Andrology and Infection Centre at Novena Medical Center is open.Call us at 63972095 now to book your appointment.More on HIV symptoms.

Feel free to email your queries, feedback and suggestions on what other topics you want to see in the comments section below.If you have any questions, visit our free online forum on sexual health, HIV and STDs.

If you need a HIV test visit Our Clinics anytime during our opening hours. You do not need an appointment.We are now open on weekends.

Find out more about Anonymous HIV testing at our clinics.Find out more about Anonymous Rapid HIV Combo tests at our clinics.More on HIV symptoms.

If you had a high risk exposure to HIV within the past 72 hours, you can take medicines to reduce your risk of actually contracting HIV. Find out more on HIV PEP Treatment.

About Dr. Tan
Dr. Tan graduated from the National University of Singapore in 2001. His residency was in the two largest public hospitals in Singapore; Tan Tock Seng Hospital and Singapore General Hospital.

Find the profiles of our panel of doctors.

Consultation $20.00-80.00
Rapid test only $20.00
(not inclusive of test)
8am – 5pm $60.00
5pm – 9pm $80.00
STD screening
Standard HIV, Syphilis, Hepatitis B/C, Herpes Simplex Virus Type I and II $ 200.00
Urine – Chlamydia and Gonorrhoea PCR, Monilia, Trichomonas, NSU, Mycoplasma, Ureaplasma, Urine Culture, Candida $ 280.00
Urethritis and Vaginitis
Vaginal Swab – Chlamydia and Gonorrhoea PCR, Monilia, Trichomonas PCR, Gardnerella PCR, Candida PCR, Group B StrepNSU, Mycoplasma, Ureaplasma, Direct Microscopy, Candida, Vaginal swab culture $ 345.00
Comprehensive (Male) Blood – Syphilis, Hepatitis B/C, Herpes Simplex Virus Type I and IIUrine – Chlamydia and Gonorrhoea PCR, Monilia, Trichomonas, NSU, Mycoplasma, Ureaplasma, Urine Culture, Candida $ 390.00
Comprehensive (Female) Blood – Syphilis, Hepatitis B/C, Herpes Simplex Virus Type I and IIVaginal Swab – Chlamydia and Gonorrhoea PCR, Monilia, Trichomonas PCR, Gardnerella PCR, Candida PCR, Group B StrepNSU, Mycoplasma, Ureaplasma, Direct Microscopy, Candida, Vaginal swab culture $ 525.00
Individual STD Tests
Determine Syphilis test Rapid Syphilis Test $ 50.00
Determine Hepatitis B Test Rapid Hepatitis B Test $ 50.00
Herpes Simplex Virus PCR Herpes Simplex Virus Polymerase Chain Reaction (PCR) Test $ 190.00
Chlamydia and Gonoccocal PCR Chlamydia and Gonorrhea
Herpes Simplex Virus Type I IgG Antibody Herpes Type 1 $ 40.00
Herpes Simplex Virus Type II IgG Antibody Herpes Type 2 $ 40.00
Non-Specific Urethritis (NSU) Culture Mycoplasma, Ureaplasma $ 118.00
HIV test
HIV RNA/DNA Polymerase Chain Reaction (PCR) Test $600
Add $100 for expedited results
Rapid Fingerprick Blood HIV-1/2 P24 Antigen/Antibody Combo (HIV Duo Test) (4th generation!) $ 150.00
Rapid Oral Saliva HIV-1/2 Antibody Test (Oraquick) $ 50.00
Rapid Fingerprick Blood HIV-1/2 Antibody Test (Determine) $ 50.00
PEP $2000 – $2200


  1. Amelia

    Hi Doctors,
    Can HIV be transmitted via deep French kiss and used tongue? As far as I felt, I didn’t feel any blood while or after the French kiss. I don’t know whether my partner is Hiv positive or negative. I also don’t know whether he has open sores or ulcers or cut in his mouth or lips. I also don’t know whether I had open sores or ulcers or small cuts maybe on my mouth or lips. My questions are…IF he is hiv positive, will that French kiss transmit the disease to me? How is the possibility?
    Thanks for your time and kindness to reply my questions.

  2. eastbaycali

    how accurate is a HIV AB test at a lab with professional DR 8 months post exposure been negative is 100% conclusive?

  3. Confuse

    How accurate is PCR test for gonorrhoea and chlamydia 5 days past exposure? conclusive?

    I have protected oral sex and its now 11 days past exposure and without symptoms yet.

    My urine test is not the 1st urine of the day. But held for 2 hours before passing urine. And its the 1st catch of course.


  4. Innova

    I have some questions.
    1. What is the risk for protected oral sex, in terms of STD and HIV?
    2. How long post exposure at the earliest can i do the urine test? Assuming no symptoms.

    • 1. Very low, but we are not able to give you an exact number.
      2. 2 weeks for urine test.

      • Innova

        Sorry Dr. I meant what STD can be transmitted through protected oral sex?

        And will any of those listed affect breastfeeding mummies?

        • STD such as Herpes, HPV, chlamydia, gonorrhoea and HIV can be transmitted through oral sex, but risk is very low with protection. HIV can affect breastfeeding mummies.

  5. Louise

    I have small particle on my private part. is total consultation fee under cover by insurance?


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