How much does an STD test cost?
Private STD test prices depend on the infections checked and samples required. At Marylebone Diagnostic Centre in London, the published price is £149 for Sexual Health Basic and £199 for Sexual Health Plus. These packages cover different tests.
NHS sexual health clinics offer free STI testing and treatment. If you prefer private testing, compare the exact coverage and total cost before booking.
Explore MDC sexual health tests“STD test” and “STI test” are commonly used when searching for sexual health screening. STI means sexually transmitted infection. There is no single test that checks for every infection.
Compare MDC’s private sexual health test prices
| MDC package | Price | Coverage overview | Details |
|---|---|---|---|
| Sexual Health Basic | £149 | HIV, syphilis, chlamydia and gonorrhoea. | View Basic test |
| Sexual Health Plus | £199 | A urine or swab PCR panel covering multiple genital organisms. Check the full target list; it is not equivalent to an HIV blood test. | View Plus test |
Published prices checked on 20 September 2026. Confirm current pricing, sample requirements and any additional fees before booking. These are selected packages, not MDC’s complete test range.
Bars start at zero and compare price only. A higher price does not mean a package is the right choice for every patient.
Why do STI test prices vary?
Costs can differ according to the infections tested, laboratory methods, sample sites and clinical support included. Check whether the quoted price covers sample collection, results review, consultation and any treatment.
Package names alone are not enough to compare tests. Match the listed infections and sample sites to your concerns.
How do I choose the right test?
- 1. Explain your concern Mention symptoms, the type of sexual contact and when it happened.
- 2. Check coverage and timing Ask which infections, sample sites and testing dates are appropriate.
- 3. Confirm the total Review the price, included support and any follow-up charges.
Your questions answered
Can I get an STI test for free?
Yes. NHS sexual health clinics offer free testing and treatment. MDC provides a private, paid testing option at Baker Street.
Does a “full STD test” check everything?
No. “Full” is not a universal test list. Check the named infections, sample sites and window periods for the package you are considering.
Can one urine sample check for every STI?
No. Different infections need different samples. HIV screening generally uses blood, while some exposures may require throat or rectal swabs as well as genital testing.
When should I test after sex?
Timing depends on the infection and test. Testing too early can miss an infection. Tell the team your exposure date; if you have symptoms, seek advice promptly rather than waiting for a screening date.
Does the price include treatment?
Do not assume treatment is included in a testing fee. Confirm whether consultation, prescriptions, medicines and repeat tests are included or charged separately.
Can I need testing without symptoms?
Yes. Some STIs cause no symptoms. Testing may be appropriate after a new partner, a known exposure or other sexual health concerns.
Explore testing at MDC
Compare our Sexual Health Basic and Sexual Health Plus pages, or contact the team if you are unsure which test to choose.
Marylebone Diagnostic Centre
73 Baker Street, London W1U 6RD
