Table 2.

Clinical features of sexually transmitted infections in adolescents

Chlamydia

• No symptoms in half of males and 70% of females

• Vaginal discharge is usual presentation in girls aged under 13 years

• Pelvic inflammatory disease can be asymptomatic

Gonorrhoea

• No symptoms in up to 80% of females

• Urethritis and discharge is common in males

• Girls aged under 13 years usually have vaginal discharge

• Pharyngeal and rectal infections may be present