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Sexual Health Glossary

Plain-language meanings for commonly used sexual health terms.

A–Z basics

  • Consent: freely given, informed, specific, ongoing and reversible agreement.
  • Contraception: methods used to reduce the chance of pregnancy.
  • Emergency contraception: methods used after unprotected sex or contraceptive failure to reduce pregnancy risk.
  • STI: sexually transmitted infection; some infections cause few or no symptoms.
  • RTI: reproductive tract infection; terminology and categories can vary by clinical context.
  • Barrier method: a method, such as a condom, that creates a physical barrier to reduce certain risks.
  • Sexual orientation: a person’s pattern of romantic, emotional or sexual attraction.
  • Gender identity: a person’s internal sense of their gender.
  • Libido: a common term for sexual desire or interest.
  • Medical review: a qualified professional’s documented assessment of content accuracy within a stated scope.

Definitions here are simplified for general learning. Clinical terms can have more specific meanings, so consult a healthcare professional or trusted medical source for individual questions.

Please remember: This guide is general education, not a diagnosis. Seek a qualified healthcare professional for personal medical advice, symptoms, testing or treatment.