The practice guideline on STD consultations from the Dutch College of General Practitioners sets out guidelines for the diagnosis and treatment of Chlamydia-infection, gonorrhoea, syphilis, trichomoniasis, genital herpes condylomata acuminata, hepatitis B, HIV-infection and pubic lice. Testing for Chlamydia-infection is always indicated if an STD is suspected but the necessity of also testing for gonorrhoea, syphilis, hepatitis B or HIV-infection depends on the likely risk. For the diagnosis of Chlamydia in a symptomatic woman it advises taking material from the cervix and urethra. In an asymptomatic woman Chlamydia infection is excluded by means of a urine test. In men a urethral swab of the first part of the urinary stream can be used for diagnosis. The first choice of treatment for gonorrhoea is a single 1 g intramuscular dose ofcefotaxime. The practice guidelines also examine other aspects of treatment for STDs including counselling and telling partners.