A genitourinary medicine (GUM) clinic provides specialist care for sexual health and infections affecting the genital and urinary systems. Services commonly include confidential advice, assessment and testing for sexually transmitted infections such as chlamydia, gonorrhoea, syphilis and genital herpes. Clinics can diagnose infections, prescribe or provide treatment, and advise on reducing the risk of transmission. They may also help patients arrange testing or treatment for sexual partners. Depending on the clinic, services may include HIV testing and care, vaccinations relevant to sexual health, and advice about contraception, safer sex and pregnancy testing. Some clinics assess eligibility for HIV prevention medicines, including PrEP and PEP. Appointments may involve a discussion of health and sexual history, examination or samples such as urine, blood or swabs.