No Symptoms, Still at Risk? When and Why to Get Tested for STIs

Can You Have an STI With No Symptoms?

It's one of the most common questions we get at Mayfield Clinic: "I feel fine—do I still need an STI test?" In short, yes. Many of the most common STIs in the UK—like chlamydia, gonorrhoea, and HIV—can cause zero symptoms, especially for months or even years.

• Up to 70% of women and 50% of men with chlamydia have no symptoms
• Gonorrhoea can silently infect the throat or rectum
• HIV and syphilis often stay hidden before causing later complications

Regular screening is the key to protecting your health and the health of your partners.

Who Should Get Tested Even Without Symptoms?

Consider a comprehensive STI test if you:

• Have had unprotected sex (vaginal, anal, or oral)
• Have a new sexual partner or multiple partners
• Are planning a new relationship or pregnancy
• Want to check your health status for peace of mind

The Science Made Simple

Many STIs settle in the body without causing immediate symptoms. By collecting a small blood sample (TDL Tiny kit), urine (Aptima) and throat/rectal swabs (Aptima), our kit can detect these hidden infections quickly and simply.

You'll get accurate results, fast—usually within three days.

Actionable Steps for Everyone

• Use condoms or dental dams to reduce your risk
• Visit the NHS A-Z guide to STIs for more prevention tips
• Don’t judge—up to half of UK cases go undiagnosed due to lack of symptoms

Take Action: Home Testing or In-Person Care

You can order our Comprehensive At-Home STI Test Kit or book an in-person appointment if you’d prefer professional collection and advice. All options are discreet and fully confidential.

Your sexual health is an essential part of your wellbeing—don’t leave it to chance.