Health Knowledge Hub
Clear, calm health information.
Educational guides on sexual health and home screening, written in plain English and based on NHS and UK public health guidance. This information is educational and is not medical advice.
Can you have an STI without knowing?
Yes. Several common STIs often cause no noticeable symptoms, which is why testing matters even when you feel well.
Read guide →Why regular STI screening is important
Routine screening finds infections that cause no symptoms, so they can be treated and not passed on.
Read guide →Understanding chlamydia
Chlamydia is a common bacterial STI that often has no symptoms and is treated with antibiotics.
Read guide →Understanding gonorrhoea
Gonorrhoea is a bacterial STI that may have no symptoms and needs clinical treatment.
Read guide →Understanding syphilis
Syphilis is a bacterial STI that develops in stages and is treatable when diagnosed.
Read guide →Understanding HIV testing
HIV tests look for markers of infection; timing after a possible exposure affects how reliable a result is.
Read guide →How at-home testing works
Home screening kits let you collect a sample privately and read a result, followed by clinical confirmation where needed.
Read guide →Understanding test results
Every home result needs context: positive results need confirmation, negatives can be early, and invalid tests should be repeated.
Read guide →When should you consider getting tested?
Consider testing after a new partner, unprotected sex, or if a partner has an STI. See a clinician if you have symptoms.
Read guide →The importance of early detection
Early detection means earlier treatment, fewer complications and less risk of passing an infection on.
Read guide →