Depending on which STD you’re being tested for and what place on your body might be infected, you might be asked to urinate in a cup (that urine sample could be tested for gonorrhea, chlamydia, or trichomonas), or to give a sample of your blood (that blood could be tested for HIV infection, herpes, or syphilis). In some cases, your health care provider may swab your throat, mouth, tip of your penis, anus, or a rash/sore. The majority of screenings done generally require only a urine or blood sample.
It is possible for either partner to become infected with HIV or a STD through performing or receiving oral sex, although this is extremely rare. There are some things that can increase the risk of HIV transmission during oral sex including:
Sexual transmission of many diseases has been reported between lesbians, including rarely HIV. This is likely due to the sharing of sex toys and/or intimate genital contact. People who report same-sex behavior should be screened periodically for HIV and other STDs. Please contact your doctor for more information.
Although it is possible to get HIV or an STD by sharing sex toys with your partner, there are ways to cut down on this possibility. Washing the sex toys in hot, soapy water before sharing (then rinse well with water), or using fresh condoms over them for each partner can decrease the chance of contact with menstrual blood, vaginal fluids, semen, or other body fluids that might transmit HIV and STDs.