Skin rash and lesions – general


  • This guideline is not a comprehensive dermatological reference but an overview of possible differential diagnosis for general skin conditions that present that might be related to a sexually transmitted infection (STI).
  • Infections are often transmitted via intimate skin-to-skin contact, or kissing, not only with genital and anal penetration.
  • Several eye, mouth and joint conditions are related to STIs.
  • Use this section and the section on Genital dermatology as a guide together.
  • See DermNet NZ and UptoDate for further details.