How to Talk About an STI

MDC | Sexual Health & Wellbeing

How to Talk About an STI: A Gentle Guide to Symptoms, Privacy and Your Partner

Some conversations are difficult to start. Talking about a sexually transmitted infection can be one of them.

Perhaps you have noticed a symptom. Perhaps someone you have been intimate with has tested positive. Or perhaps you have received a result you were not expecting.

Your first thought might not be about treatment. It might be about privacy, relationships or what someone else will think.

At Marylebone Diagnostic Centre (MDC), we understand that these concerns are real. Our clinical team has supported many patients with positive STI results, including people who requested additional discretion around their identity.

Where clinically and operationally possible, we have accommodated requests to limit identifying information while maintaining safe testing, accurate results and appropriate clinical records.

Sexual health is healthcare. You deserve to be treated with dignity, respect and compassion.

Quick Answer: What should I do if I think I have an STI?

Arrange appropriate testing, even if you feel well. Avoid sexual contact until you have received advice about testing and any necessary treatment. If you test positive, a healthcare professional can explain your options and help with partner notification. You can ask about confidential testing and anonymous notification without having to manage everything alone.

Question 1

What Are Five Signs of an STI?

Not every STI causes symptoms. But there are five common signs worth recognising.

01

Unusual discharge

A change in discharge from the penis, vagina or anus, including colour, smell or consistency.

02

Burning when urinating

Pain or burning when passing urine may be associated with an STI, but urinary infections can cause similar symptoms.

03

Sores, blisters or lumps

New changes around the genitals, anus or mouth. Some may be painful, while others are painless.

04

Itching or irritation

Persistent genital or anal itching and discomfort. Not all irritation is caused by an STI.

05

Unusual bleeding or pain

Bleeding after sex, bleeding between periods, pelvic discomfort or testicular pain.

?

What if I feel completely normal?

You can still have an STI. Some infections remain asymptomatic, which is why appropriate testing matters after possible exposure.

Important: Sudden severe testicular pain, severe pelvic pain or feeling acutely unwell requires urgent assessment.
Question 2

What Do I Do If I Think I Have an STI?

You do not need to know which infection you might have before asking for help.

Arrange the right test

A clinician can advise which urine, swab or blood tests are appropriate based on your symptoms, sexual contact and timing of possible exposure.

Testing too early may miss an infection. Ask about the relevant detection window.

Avoid passing on an infection

Avoid sexual contact while awaiting assessment, particularly if you have symptoms or a partner has tested positive. Follow medical advice about when it is safe to resume sex.

Do not rely on symptoms alone

Burning, discharge and itching can have different causes. Equally, feeling well does not rule out an STI.

Understand your result

If you test positive, ask about treatment, follow-up testing and whether current or previous partners may need notification.

Possible recent HIV exposure? If exposure may have occurred within the previous 72 hours, seek urgent advice from an NHS sexual health service or A&E about HIV post-exposure prophylaxis (PEP). Do not wait for a routine appointment.
Talking to Someone

How Do I Tell Someone I Have an STI?

For many patients, the conversation feels harder than the test itself.

You might be worried about blame, rejection or questions about your relationship. You may not even know when the infection was acquired.

Remember: A positive STI result does not necessarily tell you when the infection was acquired or who transmitted it.

What can I actually say?

“I’ve had a sexual health test and one of my results came back positive. I’m getting medical advice, but I wanted to let you know because you might need testing too. I know this may be difficult to hear, and we can take time to talk.”

Choose a private moment if it is safe to do so. Speak calmly, share what you know and avoid making assumptions about where the infection came from.

If you are worried about threats, violence or coercion, do not put yourself at risk. Ask a specialist sexual health service about a safer way to notify your partner.

Question 3

How Can I Anonymously Tell Someone About an STI?

You may want someone to know they should get tested without revealing your identity.

This is called anonymous partner notification. Some specialist sexual health services can contact partners on your behalf without identifying you.

Can someone send an anonymous STI text?

Some established sexual health services offer anonymous notification by text or other methods. Ask the treating service what is available.

Will the person know it was me?

Services aim to protect your identity, but a partner may make assumptions. Complete anonymity cannot always be guaranteed.

Can MDC help?

MDC can discuss your confidentiality concerns, testing results and appropriate next steps. Where formal anonymous partner notification is needed, a specialist sexual health service may be the most appropriate route.

Protect your privacy: Be cautious about unfamiliar anonymous notification websites that request sensitive information without explaining how it will be used.
Question 4

Do I Need to Tell My Partner If I Have an STI?

If you have an STI, notifying partners who may have been exposed is an important part of protecting their health.

They may have no symptoms but still need testing or treatment. Notification can also help prevent reinfection.

Do I have to tell them myself?

Not necessarily. A specialist sexual health service may be able to assist with confidential or anonymous partner notification.

Is it a legal requirement?

There is no single UK legal rule that applies identically to every STI and every situation. Certain circumstances involving transmission can have legal consequences.

Follow clinical advice about reducing transmission and notifying partners. Seek specialist legal advice if you have concerns about your particular situation.

What if I cannot contact a previous partner?

Explain the circumstances to the sexual health professional. They can advise whether notification is possible and appropriate.

MDC Patient Flashcards

Questions You May Feel Uncomfortable Asking

Sometimes it is easier to read an answer privately. Tap a card to reveal our clinical guidance. Tap again to return to the question.

Can I have an STI without symptoms? Tap to reveal

Yes. Many STIs cause no symptoms. Testing may still be appropriate after possible exposure.

Tap to return
Does a positive STI test mean someone cheated? Tap to reveal

No. A positive result does not necessarily establish when the infection was acquired or who transmitted it.

Tap to return
Can I tell a partner anonymously? Tap to reveal

Some specialist sexual health services can notify partners without naming you.

Tap to return
Will my employer know about my STI test? Tap to reveal

STI results are confidential medical information and are not routinely disclosed to employers.

Tap to return
Can I test without giving my real name? Tap to reveal

Some NHS sexual health services permit aliases. Private clinics may need identifying details for safe care. Ask before booking.

Tap to return
Can oral sex transmit an STI? Tap to reveal

Yes. Certain STIs can be transmitted through oral sex. Throat testing may be appropriate.

Tap to return
What if I am afraid to tell my partner? Tap to reveal

Ask a specialist sexual health service about safer notification options. Do not risk your personal safety.

Tap to return
Can an STI go away without treatment? Tap to reveal

Some infections may clear, but others persist or cause complications. Never assume symptoms disappearing means the infection has gone.

Tap to return
Our Clinical Approach

Confidential STI Testing: Your Privacy Matters

For some patients, the greatest worry is not the blood test or swab. It is who might find out.

At MDC, We Listen Without Judgement.

Our clinical team has supported many patients with positive STI results, including people who requested additional discretion about their personal information.

We understand that privacy can be the reason someone feels able to seek medical help.

Where safe and appropriate, we have worked to accommodate those requests while maintaining accurate sample identification, confidential results and appropriate clinical records.

We do not ask patients to justify their private lives. Our role is to listen, explain the results and help them access appropriate care.

Is confidential the same as anonymous?

No. Confidentiality means personal medical information is protected. Complete anonymity may not be possible where identifying details are required for safe care or legal obligations.

Can I ask how my results are sent?

Yes. Ask the clinic about its supported communication methods before testing, particularly if you are concerned someone else may see an email, call or message.

Will my GP automatically be told?

Information-sharing arrangements vary. Ask the clinic how results and clinical records are handled and when sharing may be necessary.

Can I ask about privacy before booking?

Absolutely. You can raise confidentiality concerns before deciding whether a particular testing service is suitable.

A Message From MDC

You Are More Than a Test Result.

Some patients arrive at our clinic visibly anxious. Others seem calm during testing, only to become worried when a result comes back positive.

We have helped patients who were concerned about their privacy and wanted to minimise the personal information they disclosed wherever possible.

An STI diagnosis does not define your character, your relationship or your future.

Your health deserves attention. Your privacy deserves respect. And you deserve to be treated like a person, not a diagnosis.

Our aim is to provide appropriate testing, clear information and a respectful route towards the care you need.

Your Next Step

Which Sexual Health Test Should I Book?

The right test depends on your symptoms, the type of contact and when the possible exposure occurred.

I have no symptoms

Screening may still be appropriate. Ask about relevant infections and testing windows.

Explore STI Screening

I have burning or discharge

You may need a clinical assessment and targeted urine or swab testing.

View Testing Options

My partner tested positive

You may need testing or treatment even if you feel completely well.

Explore Sexual Health Services

I already have a positive result

Seek appropriate treatment or referral, and discuss follow-up and partner notification.

Contact MDC
Choosing the correct test: Urine testing alone may not detect infections at every exposed site. Throat or rectal swabs may be appropriate after certain exposures, while blood tests may be required for HIV, syphilis or hepatitis.
Patient Questions

Frequently Asked Questions

What are five common signs of an STI?

Unusual discharge, burning when urinating, sores or lumps, itching or irritation, and unusual bleeding or pelvic or testicular pain.

Can I have an STI without symptoms?

Yes. Many STIs can be present without noticeable symptoms.

What should I do after a positive result?

Follow advice about treatment, sexual contact, partner notification and any follow-up testing.

Can I anonymously notify someone about an STI?

Some specialist sexual health services offer anonymous partner notification. Ask your treating service about availability.

Do I have to tell my partner personally?

Not necessarily. Specialist services may be able to assist with notification.

Does a positive STI result prove infidelity?

No. It does not necessarily establish when an infection was acquired or who transmitted it.

Will my employer know about my test?

STI results are sensitive medical information and are not routinely disclosed to employers.

Can I request additional privacy at MDC?

You can discuss confidentiality concerns with the clinic before booking. Some identifying information may still be required for safe testing and clinical care.

Can I have sex while waiting for STI results?

If you have symptoms or a possible exposure, avoid sexual contact until you receive appropriate advice. Follow any further restrictions if treatment is needed.

Where can I arrange confidential STI testing in London?

Confidential sexual health services are available through the NHS and private providers, including Marylebone Diagnostic Centre at 73 Baker Street, London.

Marylebone Diagnostic Centre

Your Health Is Private. Your Questions Are Welcome.

Whether you are worried about symptoms, have received a positive result or need help understanding what to tell a partner, you deserve clear information and respectful care.

Marylebone Diagnostic Centre
73 Baker Street
London W1U 6RD

Medical References

  1. NHS — Sexually Transmitted Infections. Read NHS guidance
  2. NHS — Visiting an STI Clinic. Read NHS guidance
  3. NICE NG221 — Reducing Sexually Transmitted Infections. Read NICE guidance
  4. NHS Digital — HIV and STI Confidentiality. Read confidentiality guidance

Medical disclaimer: This article is educational and does not replace individual medical assessment, diagnosis or treatment. Appropriate testing, treatment and partner notification depend on the infection and clinical circumstances.