Anal sex[ edit ] Unprotected anal penetration is considered a high-risk sexual activity because the thin tissues of the anus and rectum can be easily damaged. Some sex toys are made of porous materials, and pores retain viruses and bacteria, which makes it necessary to clean sex toys thoroughly, preferably with use of cleaners specifically for sex toys. HIV may be transmitted through contaminated needles used in tattooing , body piercing , or injections.
A dental dam originally used in dentistry is a sheet of latex used for protection when engaging in oral sex. Even more hygiene protection should be considered by pregnant women when using sex toys. That two-drug combination has been shown to prevent HIV infection in different populations when taken daily, intermittently, and on demand. Additionally, the microbes responsible for some diseases, including genital warts and syphilis , can be transmitted through skin-to-skin or mucous membrane contact. Some sex toys are made of porous materials, and pores retain viruses and bacteria, which makes it necessary to clean sex toys thoroughly, preferably with use of cleaners specifically for sex toys. The spermicide Nonoxynol-9 has been claimed to reduce the likelihood of STI transmission. Also, condoms may be more likely to break during anal sex than during vaginal sex, increasing the risk of STI transmission. Immunization against certain sexually-transmitted viruses. Oil-based lubricants damage latex and should not be used with condoms;  water-based and silicone-based lubricants are available instead. Immunization before initiation of sexual activity increases effectiveness of these vaccines. That drug combination is sold under the brand name Truvada by Gilead Sciences. It is typically used as a barrier between the mouth and the vulva during cunnilingus or between the mouth and the anus during anal—oral sex. Sharing any type of sex toy that may draw blood , like whips or needles, is not recommended, and is not safe. Two sex toys intended for anal use note the flared bases Putting a condom on a sex toy provides better sexual hygiene and can help to prevent transmission of infections if the sex toy is shared, provided the condom is replaced when used by a different partner. In order to make anal sex safer, the couple must ensure that the anal area is clean and the bowel empty and the partner on whom anal penetration occurs should be able to relax. Hormonal methods of preventing pregnancy such as oral contraceptives [i. Regular STI testing and treatment, especially by those who are sexually active with more than one casual sexual partner. Anal stimulation with a sex toy requires similar safety measures to anal penetration with a penis, in this case using a condom on the sex toy in a similar way. However, condoms are highly effective for birth control and STI prevention. A sex toy should regularly be checked for scratches or breaks that can be breeding ground for bacteria. However, many monogamous people have been infected with sexually transmitted diseases by partners who are sexually unfaithful , have used injection drugs, or were infected by previous sexual partners. The way in which a sex toy is cleaned varies on the type of material it is made of. If external and internal condoms are used at the same time, they may break due to friction between the materials during sexual activity. These condoms are made of either polyurethane or nitrile. Especially for beginners, using a condom on the finger is both a protection measure against STI and a lubricant source. Most condoms are lubricated and they allow less painful and easier penetration.
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