The short answer
Women who have sex with women can acquire sexually transmitted infections and should not be excluded from testing because of a partner’s gender. Care should reflect your body, the contact involved, symptoms and any previous partners. Cervical screening remains relevant for someone with a cervix who meets their local programme’s criteria. This guide is for adults aged 18 and over, including lesbian, bisexual and trans women.
The useful first step is to contact an NHS sexual health clinic if you have symptoms, a possible exposure or questions about tests. You do not need to prove that your relationship belongs in a particular category. Ask what information staff need, what support is available and how to explain your circumstances in words that feel comfortable. Nobody needs to describe an identity as a risk factor.
STI risk depends on contact, not an identity label
NHS 111 Wales’s information for LGBTQ+ women makes clear that women and trans and non-binary people are not immune to STIs. Infection can pass through relevant skin contact, bodily fluids and shared items. The exact concern depends on the infection and contact involved; being in a relationship with another woman is not evidence that testing is unnecessary. The sexual health glossary explains the wider meaning of care and prevention.
Avoid trying to rank a partner’s trustworthiness through a test result, appearance or description such as clean. A negative result answers a question about a particular test at a particular time. It does not tell you everything about past contact or future choices. In a clinic conversation, explain what happened and when rather than assuming staff can infer it from lesbian, bisexual or trans. You can decline a question while asking why it matters.
Testing without symptoms and choosing the right samples
The NHS STI overview explains that many infections have no symptoms. If you think you may have an STI, a sexual health clinic can assess whether testing is needed even when you feel well. Tests may involve urine, blood or swabs according to the concern. Ask which infections and body sites are covered rather than assuming a single sample is a complete check.
Tell the service when contact happened and whether a partner has a known infection or symptoms. Some infections take time to become detectable, so the clinic should advise when to test and whether a repeat is needed. This page gives no universal waiting period. If symptoms are present, ask for advice now instead of postponing contact until an online calendar says a window has closed.
The home STI testing guide explains why a posted kit and a clinic appointment serve different needs. Ask the kit provider about eligibility and what it actually tests. An incomplete kit or a result you cannot interpret should lead to a question, not an assumption that further care is unnecessary. A clinic can discuss symptoms that a home sample does not assess.
BV: do not rely on an old transmission myth
The current NHS bacterial vaginosis page describes BV as an imbalance of vaginal bacteria. It is not classed as an STI, but sexual activity can trigger it or pass it on. Its advice also says that a partner who is a woman or has a vagina may need treatment. This is a clinical decision; do not share somebody else’s prescribed treatment or decide a partner needs it from a website.
Unusual discharge or a change in smell should be assessed by a GP or sexual health clinic rather than diagnosed from a short description. Staff can confirm whether BV is involved and consider other causes or an STI. The thrush, cystitis and BV guide helps distinguish the questions to ask without identifying your condition. A symptom is not proof that a partner has been dishonest.
Tell the clinician if you are pregnant or symptoms keep returning. NHS advice discourages vaginal washes, douches and perfumed products around the vagina. If you have had genital surgery, ask the team responsible for your care about the instructions specific to your anatomy; advice about a vagina that has not been surgically constructed should not automatically be applied to every trans woman.
Cervical screening: a cervix is the relevant starting point
NHS cervical screening information concerns people with a cervix, rather than only people with male partners. Sexual orientation does not remove eligibility. Screening looks for changes associated with HPV and is different from an STI appointment or an assessment of symptoms. Read the HPV and genital warts guide for that distinction, then check the invitation or local programme for the current schedule.
A trans woman who does not have a cervix does not need cervical screening. A trans or non-binary person who does have one may need help with invitations if their GP record uses a different gender marker. England’s official trans screening guidance explains an opt-in route through the GP for eligible people registered as male. Scotland, Wales and Northern Ireland have their own programmes; ask locally rather than borrowing England’s invitation rules.
Before an appointment, ask about explaining each step, privacy, an accessible room, a support person or wording that avoids distress. You can ask to pause or stop an examination. Tell the service about pain, previous difficult examinations or access needs while arranging the visit. Do not wait for routine screening if something has changed or you have worrying symptoms; ask a GP which assessment you need.
Barriers and shared items: discuss practical choices
NHS 111 Wales describes barriers as options for reducing infection risk between women, including condoms on shared toys and dental dams for oral contact. It advises a new condom for each partner when sharing an item and washing hands before and after sex. These measures do not guarantee that every infection is prevented. Discuss the relevant contact with a clinician if you are unsure which protection is useful.
The condoms and barriers entry explains the terms without turning them into a shopping list. Decide together what you want to use, whether an allergy or material issue needs advice and what happens if someone wants to stop. Keep care instructions for reusable items and ask a clinic about infection concerns. Avoid sharing something that cannot be cleaned as directed or has deteriorated.
A prevention conversation can be brief and ordinary: discuss tests, barriers and any symptoms before contact, then accept a different preference without bargaining. If the discussion feels embarrassing, prepare the topics beforehand. You are agreeing practical boundaries, not obtaining a promise that another person can never acquire an infection. New information or a change of mind can change the agreement.
Bisexual and trans women belong in the conversation
Bisexual women do not need to erase other partners to ask for appropriate care, and trans women should not have their care decided from assumptions about their bodies. Explain only the information relevant to the assessment, including anatomy, surgery and medicines where the clinician needs it. You can ask why a question is being asked and who will see the answer.
Pregnancy prevention may matter where contact could result in pregnancy; the genders or labels of the people involved do not settle that question. NHS contraception services can explain options and emergency access. The contraception guide offers a starting point. An individual clinical discussion is more useful than assuming that every couple needs contraception or that no couple of women could ever need it.
Getting an appointment that respects your needs
NHS sexual health clinic information says you can usually contact a clinic directly without a GP referral. Check whether the service needs a booking, offers telephone triage or has a suitable appointment for your concern. The sexual health clinic entry explains the service. Ask about confidential contact details, interpreters, step-free access and how results are communicated.
If someone says that sex with women makes testing unnecessary, ask for an assessment based on the actual contact or speak to another clinician. You can write down the issue and the question you want answered. Keep the discussion focused on getting appropriate care rather than persuading someone to approve an identity. If an appointment was disrespectful, the service’s patient advice or complaints route can explain how to raise it.
Common questions
Do lesbians need STI tests? They may. Testing depends on contact, symptoms and possible exposure, not a label. An NHS clinic can advise what is appropriate.
Can BV pass between women? Current NHS guidance says sexual activity can pass it on, although BV is not classed as an STI. A clinician decides whether a partner also needs treatment.
Do I need cervical screening if I have never had a male partner? Sexual orientation does not remove eligibility if you have a cervix. Check your local screening programme.
Does every trans woman need a cervical screen? No. A person without a cervix does not need cervical screening. Other symptoms or health needs still deserve assessment.
Can I use a home test instead of seeing a clinic? A kit may be useful, but ask what it covers. Symptoms, unsuitable samples or uncertainty can require a clinic assessment.
UK help
Contact a GP or NHS sexual health clinic for symptoms, testing or questions about BV. Use the NHS clinic finder in England and local NHS services in Scotland, Wales or Northern Ireland; the UK help directory lists broader routes. Explain if you need a discreet contact method or adjustments for an appointment. An STI result should lead to care and information, not blame.
For cervical screening, contact your GP practice or local screening programme about eligibility, invitations and appointment support. For pregnancy prevention or emergency contraception, contact a pharmacy, GP or sexual health service promptly and check its current access arrangements. For urgent illness use your nation’s urgent NHS advice route; call 999 for a life-threatening emergency.