Risk factors for sexually transmitted infections include multiple assailants, biting, defloration, wounds or anal penetration. Perpetrator risk factors for bacterial infection include men who have sex with men or intravenous drug users.
Prophylactic antibiotics should be offered; this may vary from trust to trust, but often takes the form of
These are given as oral doses. If the patient is pregnant, metronidazole can be omitted, although specialist opinion is recommended.