Expert Medical Guides
Reliable, physician-reviewed information on sexual health conditions, symptoms, and testing. Empower yourself with knowledge from Harley Street specialists.
Symptom Guides
Vaginal Odour and STIs: What a Fishy or New Smell Means
A fishy or unusual vaginal smell is most often BV, sometimes trichomoniasis. Chlamydia rarely smells. Which test to book and results times on Harley Street.
How STDs Affect Your Vaginal Discharge
Different STIs cause different discharge changes. Learn what yellow, green or unusual discharge may indicate and which infections to test for.
Green or yellow discharge: is it trichomoniasis, BV or an STI?
Frothy yellow-green discharge often means trichomoniasis, but gonorrhoea, chlamydia or BV can look similar. Trich test £120.63, results in 3 working days.
Swollen lymph nodes in the groin: STI or not?
Swollen groin lymph nodes usually come from a minor leg or skin infection. When to see a GP, and which herpes, syphilis or HIV test to book in London.
Spots, bumps or white patches on the penis: STI or normal skin?
Pearly penile papules and Fordyce spots are usually normal. Warts, herpes and molluscum need a look. Our genital warts check is £150, diagnosed on the day.
Burning when you pee: UTI or STI?
Stinging or burning when you pee can be a UTI or an STI such as chlamydia. How to tell them apart, which test to book and when results come back in London.
Sore throat after oral sex: which STIs, and how to test
A sore throat after oral sex can be gonorrhoea, chlamydia, herpes or syphilis, or a common cold. Which throat swab or blood test to book on Harley Street.
Pelvic pain after sex: STI or something else?
Pelvic pain after sex can come from an STI, endometriosis, a cyst or dryness. Women's packages from £250 test for chlamydia and gonorrhoea at Harley Street.
Brown discharge after sex: is it an STI or old blood?
Brown discharge after sex is usually old blood, but ectropion or an infection can cause it. Women's packages from £250 test for chlamydia and gonorrhoea.
Testicular pain after sex: when is it an STI, and when is it an emergency?
Testicular pain after sex is often arousal congestion or an STI we can test and treat. Sudden, severe pain needs A&E straight away. STI tests from £104.
Condition Spotlights
What are the symptoms of chlamydia in men?
Many men with chlamydia have no symptoms. When they appear: discharge, burning when you pee or testicular pain. Test £104, results within 3 working days.
Oral Chlamydia: Can You Get Chlamydia in Your Mouth?
Chlamydia can infect the throat through oral sex. Learn how it spreads, throat symptoms and how to test — book a confidential Harley Street appointment today.
How Long Until Chlamydia Is Detected?
Chlamydia can be detected from 2 weeks after exposure with a urine or swab test. Learn about testing windows, accuracy and how soon you can get results.
HIV Symptoms: How Do You Know If You Have HIV?
How do you know if you have HIV? Learn about early symptoms, the window period, and when to get tested at our private Harley Street clinic.
What is usually the first sign of HIV?
HIV's early illness usually starts 2-6 weeks after exposure, then often no symptoms for years. Test £75 (£125 with the blood draw), results in 4 to 24 hours.
Can HIV Symptoms Start 2 Days After Sex?
A fever or sore throat 2 days after sex is not the HIV illness, which comes at 2 to 6 weeks. Inside 72 hours, ask about emergency HIV medicine and when to test.
What are the symptoms of syphilis in women?
Syphilis in women often causes a painless, hidden sore, then a rash. Test £85 (£135 with the blood draw), results in about 24 hours at our Harley Street clinic.
Syphilis Testing and Treatment
How syphilis is diagnosed and treated in women. Blood test options, antibiotic treatment by stage, and what to expect during pregnancy. Private testing.
Herpes Simplex: Myths vs Facts
Common misconceptions about herpes simplex virus debunked. HSV-1 vs HSV-2 differences, transmission facts, and what a positive diagnosis means.
Gonorrhoea Symptoms in Men and Women
Gonorrhoea symptoms vary between men and women and may be absent entirely. Learn the signs, how it spreads, testing options and antibiotic treatment.
Gonorrhoea: Causes and Risk Factors
Understanding gonorrhoea causes and risk factors. Learn who is most at risk and when to get tested at our private Harley Street clinic.
What does herpes look like?
Herpes starts as tingling, then blisters, then small ulcers that crust over. A PCR swab of an active sore (£120.63) confirms it, results in 3 working days.
What are the symptoms of chlamydia in women?
Most women with chlamydia have no symptoms. When they appear: discharge, bleeding after sex or pelvic pain. Our test is £104, results within 3 working days.
What are the symptoms of syphilis in men?
Syphilis in men often starts as a painless sore, easily missed. Test £85 plus £50 blood draw (£135), results in about 24 hours at our Harley Street clinic.
Can chlamydia lie dormant for years?
Chlamydia can persist for months with no symptoms, which is why it seems to reappear. Test £104 at our Harley Street clinic, results within 3 working days.
What is super gonorrhoea, and does it change how I should get tested?
Super gonorrhoea means strains resistant to standard antibiotics. Private gonorrhoea test at our Harley Street clinic, £104, results within 3 working days.
Mycoplasma hominis vs Mycoplasma genitalium: what is the difference?
Mycoplasma genitalium is a recognised STI; hominis is often normal flora. Our genitalium test is £120.63, or £156.25 with Ureaplasma, results in 3 working days.
What is "the clap"? Gonorrhoea explained
"The clap" is slang for gonorrhoea. What it means, the symptoms in men and women, how the test works and when results are back at our Harley Street clinic.
Testing Advice
Can Routine Blood Tests Detect STDs?
Standard blood tests do not screen for most STIs. Only specific tests detect infections like HIV, syphilis and hepatitis. What you need to request instead.
Early HIV Test Accuracy: A Comprehensive Guide
A guide to HIV test types including rapid, antibody and NAT testing. When to test, how often, and what your results mean. Early detection from 10 days.
Same-Day STI Testing London: Results in 6 Hours
Same-day STI test results at our Harley Street clinic. FAST Screen returns HIV, syphilis, chlamydia and gonorrhoea results in 6 hours. Book online today.
Does a standard STI test include trichomoniasis?
Most basic screens for chlamydia, gonorrhoea, HIV and syphilis do not test for trichomoniasis. Our Gold and Platinum packages do, or book it alone for £120.63.
Can men get an HPV test?
Men can have a private HPV test on Harley Street. What the swab checks, when testing is worth it, results in 3 working days, and how women's tests differ.
What is the difference between TPHA and RPR on a syphilis blood test?
Our syphilis screen is an IgG/IgM EIA. A reactive screen is confirmed, and RPR shows activity. Test £85 plus £50 blood draw, results in about 24 hours.
General Information
Private STI Testing London - Same Day Results at 117a Harley Street
Private STI testing at Sexual Health Clinic London, 117a Harley Street. Same-day appointments, discreet testing, clear prices and fast results.
Anonymous Sexual Health Clinic London - Walk-In and Appointment Testing
Discreet private sexual health testing at 117a Harley Street. Anonymous-friendly STI testing, same-day appointments and direct results.
Comprehensive STD Screening London - What Tests Are Included and What They Cost
What comprehensive STD screening includes at Sexual Health Clinic London, with test types, sample methods, turnaround times and Harley Street booking.
STDs: Surprising Ways to Catch Them Without Sex
STIs can spread without penetrative sex — through kissing, skin contact and shared items. Learn which infections transmit non-sexually and book a confidential test today.
Asymptomatic STDs: Can You Have an STI Without Symptoms?
Many STIs, including chlamydia, gonorrhoea and HIV, can be carried without symptoms for months or years. Learn which ones and why regular testing matters.
How to Prevent STIs: Myths vs Facts
Common myths about sexually transmitted infections, from transmission to symptoms. Separating fact from fiction to help you stay informed and safe.
STI Testing at the Weekend and Out of Hours in London
STI testing on Saturdays and Sundays at our Harley Street clinic, 10:00 to 14:00. Book online at any hour or walk in, with FAST results back in 6 hours.