01Principles and purposeThe professional or clinical skill and the decisions it supports.
A sexual history is a focused clinical conversation, not a moral inventory. Its purpose is to connect symptoms and exposures to anatomical sites, timing, pregnancy risk, prevention and safety. Begin with the presenting concern and ask what the patient wants from the consultation. Explain why particular questions matter. Neutral, open wording allows the patient to describe partners, bodies and practices without having to accept a label that may be inaccurate or unsafe to disclose.
Privacy changes disclosure. Confirm who can see records or messages, whether anyone may overhear, and the limits of confidentiality before asking details. Offer an interpreter rather than using a partner or relative for sensitive material. Avoid assumptions based on gender, age, relationship status, disability or number of partners. Ask which organs are present only when this changes screening, pregnancy potential, examination or prescribing.
Timing and anatomy turn history into a test plan. Establish the most recent exposure, earlier partners within an organism-specific lookback, sites exposed, barrier use and antibiotics since exposure. Ask about discharge, ulcers, rash, dysuria, pelvic or testicular pain, bleeding, systemic, ocular and neurological symptoms. A site not sampled can remain infected despite a negative result elsewhere; a test during an early window may need repetition.
Reproductive and prevention questions belong in the same conversation when relevant: last menstrual period or other pregnancy possibility, current contraception, pregnancy intention, HIV PrEP or PEP, hepatitis and HPV immunisation, cervical screening eligibility and drug or alcohol use around sex. Ask explicitly about consent, pressure, fear and safety in a way that does not imply blame. A disclosure should lead to an agreed action, not merely a note in the record.
Finish with teach-back. State what is being tested, from which sites, what is not excluded, when results are expected and who owns follow-up. Agree a safe contact method and whether voicemail, text, portal or letters could reveal information. Document clinically relevant facts and the patient’s own wording for uncertainty or disclosure; avoid unnecessary intimate detail that does not support care.
Key points
- Start in private, explain confidentiality and its limits, use the patient’s words for identity and anatomy, and ask permission before sensitive questions.
- Ask about symptoms and the last relevant exposure first when timing changes emergency contraception, HIV PEP, pregnancy testing or diagnostic reliability.
- Describe sexual practices by body site and exposure: oral, vaginal/front-hole, anal/rectal and shared-device contact guide sampling more accurately than identity labels.
- For each relevant partner clarify timing, condom or barrier use, pregnancy possibility, contraception, partner diagnosis and whether sex was wanted and safe.
- Add previous STIs and tests, HIV prevention, hepatitis and HPV vaccination, medicines, allergies, pregnancy intentions and reproductive history according to need.
- Close the loop by summarising the agreed tests, window-period repeats, confidential result route, treatment contingencies, partner care and safety netting.
02Situations and prioritiesThe context, relevant information and actions that matter most.
Start with symptoms, exposure time and the patient’s goal so an urgent condition or expiring intervention is not buried beneath a comprehensive template.
Ask which body sites contacted a partner’s mouth, genitals, anus or devices; this determines specimen sites and avoids identity-based assumptions.
Clarify barriers, partner diagnoses, previous STIs, HIV prevention and vaccination to identify immediate testing and longer-term risk reduction.
Pregnancy possibility, contraception, fertility intentions and prior pregnancy outcomes can change tests, treatment safety and urgency.
Ask privately whether activity was wanted, whether the patient felt able to stop, and whether violence, payment, dependence or surveillance affects safety.
Confirm which channel and times are safe for results; shared phones, portals, addresses or interpreters can create unintended disclosure.
03Assessment and interpretationHow to gather information, assess the situation and recognise uncertainty.
Consider the information, its meaning and its limitations before deciding what follows.
- 01
Exposure-and-site checklist - Why
- Convert the narrative into a complete anatomical testing plan.
- Interpretation and limitations
- A checked site means exposure was assessed, not that infection is present; each pathogen and site still requires a suitable specimen and assay.
- 02
Timing and window review - Why
- Decide whether baseline testing can be interpreted or must be repeated.
- Interpretation and limitations
- A negative result soon after exposure may be non-excluding. Record the exposure date and the assay-specific repeat plan rather than offering generic reassurance.
- 03
Pregnancy assessment - Why
- Identify pregnancy and emergency-contraception needs that alter urgency or treatment.
- Interpretation and limitations
- Use history and testing according to timing. A very early negative test cannot exclude pregnancy from the most recent exposure.
- 04
Safeguarding and immediate-safety assessment - Why
- Identify coercion, exploitation, violence, incapacity or risk to a child or adult at risk.
- Interpretation and limitations
- A concern triggers proportionate senior and local safeguarding action; age or identity alone does not determine disclosure.
- 05
Prevention-status review - Why
- Identify gaps in HIV prevention, vaccination, contraception and screening.
- Interpretation and limitations
- Eligibility follows current programme and clinical criteria; previous infection or vaccination history should be verified where it changes management.
04Worked approachesCases with ordered reasoning, an action and a check of the outcome.
01Worked case: site-specific planTurn a neutral history into actionAn adult requests an STI screen after new oral and anal sex, has no symptoms, and is unsure when condoms were used.+
- 1Explain confidentiality and ask permission to clarify timing, body sites, partner diagnoses, pregnancy potential and whether the contact was wanted and safe.
- 2Identify pharyngeal and rectal exposure and any genital exposure without inferring sites from the patient’s identity or the partner’s gender.
- 3Offer pathogen- and site-appropriate samples plus blood-borne-virus testing based on timing and risk, explaining that an early negative may require repeat testing.
- 4Confirm a safe results channel, prevention and vaccination needs, what symptoms require earlier review, and ask the patient to repeat the plan back.
02Urgent timingAct before the template is completeThe latest contact may fall inside an HIV PEP or emergency-contraception window.+
- 1Establish exposure time, type, site, source information and pregnancy possibility immediately.
- 2Arrange same-day specialist risk assessment and emergency contraception as indicated without waiting for screening results.
- 3Complete broader history, baseline tests and follow-up after the time-critical intervention is secured.
03Communication barrierMake privacy and understanding realA companion is answering for the patient or a shared telephone may reveal attendance.+
- 1Create private consultation time and arrange a professional interpreter if needed.
- 2Explain confidentiality and its limits in accessible language, checking understanding rather than relying on assent.
- 3Agree a safe contact method and record only the information required for care and safeguarding.
05Feedback, follow-up and evidenceReview outcomes, seek feedback and identify what to improve.
- Confirm that every described exposure site has either a planned test or an explicit reason why testing is not indicated.
- Assign each result and repeat test to a named service with a date, safe contact route and action for non-attendance.
- Revisit symptoms, pregnancy possibility, PEP or PrEP, vaccination and safeguarding when results or new disclosures change the picture.
- Document the patient’s questions, decisions and safety-net instructions, including what a negative test cannot yet exclude.
- Seek feedback on language and privacy when a patient hesitates, corrects terminology or reports previous barriers to care.
06Special situationsVariants, exceptions and circumstances that change the usual approach.
Practices determine specimens
An identity label may help epidemiology, but mouth, genital and rectal exposures are what define anatomical sampling.
Silence is not consent
A patient may not volunteer coercion; a private, normalised question can uncover risk without presuming abuse.
Negative has a date
The meaning of a negative result depends on time since exposure, assay, site and whether antibiotics were taken.
Contact routes are clinical data
A correct diagnosis sent to an unsafe phone or address can expose the patient to harm.
Teach-back closes uncertainty
Asking the patient to explain the plan reveals misunderstandings about sites, windows, treatment and abstinence.
07Common pitfallsFrequent interpretation and management errors.
- 01
Using partner gender or the patient’s sexual identity as a substitute for asking about anatomical exposure.
- 02
Completing a long partner count before checking whether PEP, emergency contraception or urgent assessment is time critical.
- 03
Promising absolute confidentiality before explaining the narrow legal and public-interest circumstances in which information may be shared.
- 04
Asking about coercion in front of a partner, family member or unverified interpreter.
- 05
Recording intimate detail that has no bearing on testing, treatment, prevention, consent or safeguarding.
- 06
Giving a negative result without stating which sites and infections were tested and whether a repeat is needed.