Definition
Infections transmitted through sexual contact, sometimes without symptoms.
Symptoms
Discharge, burning, sores, warts or genital pain; symptoms may be absent.
How it may be discovered
Detected through new symptoms, exposure, a partner’s diagnosis or screening.
When to seek care
Seek advice after a concerning exposure even without symptoms; some post-exposure measures are time-sensitive.
Investigations and tests
Samples and blood tests depend on exposed sites, practices and timing; HIV and syphilis testing when appropriate.
Reaching a diagnosis
Appropriate tests establish the diagnosis; repeat testing may be needed depending on timing.
Treatment options
Organism-specific treatment, partner management, prevention and follow-up. No single treatment covers all STIs.
Explore this topic further
Continue with related explanations of how the body works and treatment options.