- STDs like gonorrhoea, chlamydia and syphilis are more common than HIV after a single encounter.
- Many STDs cause no symptoms, especially in the throat and in women.
- Most bacterial STDs are fully curable with the right antibiotics.
- Testing at the right time and treating partners prevents complications.
When people worry after a trip to Thailand, HIV usually dominates their thoughts. Yet from a doctor's point of view, other sexually transmitted infections are far more likely to follow a single encounter. The good news is that most of them are easily diagnosed, and the bacterial ones are completely curable.
Here is a clear guide to the common STDs, how they show up, and when to test.
Gonorrhoea
Gonorrhoea is a bacterial infection spread through vaginal, anal and oral sex. In men, it often causes burning during urination and a white, yellow or green discharge, usually within two to seven days. In women and in the throat, it frequently causes no symptoms.
Testing: A urine test or swab using nucleic acid amplification (NAAT) is reliable from about two weeks after exposure, or sooner if symptoms appear. Throat and rectal swabs may be needed depending on the type of contact.
Treatment: Gonorrhoea is curable with antibiotics, but resistance is a growing global concern. Correct treatment chosen by a doctor, rather than self-medication, matters.
Chlamydia
Chlamydia is one of the most common STDs worldwide, and most people who have it notice nothing. When symptoms appear, they include mild discharge, discomfort while urinating or testicular pain. In women, untreated chlamydia can cause pelvic inflammatory disease and infertility.
Testing: NAAT on urine or swabs, from about two weeks. Treatment: Easily cured with antibiotics. Read more on why chlamydia and gonorrhoea often go unnoticed.
Syphilis
Syphilis often begins with a painless sore, called a chancre, on the genitals, anus or mouth, typically around three weeks after exposure. Because it doesn't hurt, it's easily missed. Weeks later, a rash on the body, palms or soles may appear. Untreated syphilis can eventually affect the heart, brain and nerves.
Testing: A blood test is generally reliable from about six weeks, with a repeat at 12 weeks if advised. Treatment: Curable with penicillin-based treatment. Syphilis is rising in many countries, including India, as described in our article on the return of syphilis in India.
Genital Herpes
Herpes is a viral infection that spreads through skin-to-skin contact, including oral sex. A first outbreak may cause painful blisters or sores, tingling, flu-like symptoms and swollen glands, usually 2 to 12 days after exposure. Many people have very mild symptoms or none at all.
Testing: The most accurate method is a swab taken from a fresh sore. Blood tests without symptoms are not routinely recommended because they can be hard to interpret. Treatment: Antiviral medicines shorten outbreaks and reduce transmission.
Other Infections to Keep in Mind
- Hepatitis B: Spread through sex and blood. Vaccination prevents it, so check your status.
- HPV: Can cause genital warts. Vaccination is available.
- Trichomoniasis and Mycoplasma genitalium: Less known, but can cause discharge and discomfort.
Symptoms That Need Prompt Attention
- Discharge from the penis or vagina
- Burning or pain while urinating
- Sores, ulcers or blisters on the genitals, anus or mouth
- A new rash, especially on the palms or soles
- Testicular pain or swelling
Avoid sex until you've been checked, and don't try leftover or over-the-counter antibiotics, which can hide infections without curing them.
A Smart Testing Plan After Thailand
For most travelers, an efficient plan covers gonorrhoea and chlamydia at two weeks, then HIV, syphilis and, if needed, hepatitis B at six weeks. A combined STD and HIV testing panel can reduce lab visits.
How the EXACT Program Covers STDs
Our EXACT program isn't limited to HIV. Dr. Yuvraj Monga assesses your exposure for all relevant infections, arranges the right tests at the right sites, interprets your reports, and prescribes treatment when needed, including guidance for your partner.
Where appropriate, he also discusses newer preventive approaches and confirms cure with follow-up testing.
Most STDs Are Easily Treated
Discovering an STD can feel alarming, but most are simple to treat once diagnosed. The real danger lies in ignoring symptoms or never testing. A short consultation and a timed test plan protect both your health and your partner's.
Frequently Asked Questions
Can I take antibiotics just in case after Thailand?
Self-medicating with random antibiotics isn't recommended. It can mask infections, cause side effects and contribute to resistance. A doctor can decide whether any preventive treatment is suitable for you.
Is gonorrhoea in Thailand resistant to antibiotics?
Drug-resistant gonorrhoea is a growing concern in many parts of Asia. That's why proper testing, correct treatment and a test of cure when advised are so important.
Can herpes be cured?
Herpes can't be cured, but antiviral medicines control outbreaks and reduce transmission. Most people with herpes live normal lives with very occasional symptoms.
Related Reading
- Why chlamydia and gonorrhoea often go unnoticed
- The return of syphilis in India
- Herpes outbreaks and transmission
- STD symptoms every sexually active person should know
- A combined STD and HIV testing panel
- STDs without symptoms
Medical note: This article is for education and does not replace a personal consultation. If your exposure happened within the last 72 hours, seek PEP immediately at the nearest hospital or contact a specialist. If you are having thoughts of harming yourself, call Tele-MANAS on 14416 in India, the Mental Health Hotline 1323 in Thailand, or your local emergency number.
