Safe Sex - Safe Sex Precautions - Barrier Protection

Barrier Protection

Various protective devices are used to avoid contact with blood, vaginal fluid, semen or other contaminant agents (like skin, hair and shared objects) during sexual activity. Sexual activity using these devices is called protected sex.

• Condoms cover the penis during sexual activity. They are most frequently made of latex, and can also be made out of synthetic materials including polyurethane.
• Female condoms are inserted into the vagina prior to intercourse.
• A dental dam (originally used in dentistry) is a sheet of latex used for protection when engaging in oral sex. 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.
• Medical gloves made out of latex, vinyl, nitrile, or polyurethane may be used as a makeshift dental dam during oral sex, or to protect the hands during sexual stimulation, such as masturbation. Hands may have invisible cuts on them that may admit pathogens or contaminate the other body part or partner.
• Another way to protect against pathogen transmission is the use of protected or properly cleaned dildos and other sex toys. If a sex toy is to be used in more than one orifice or partner, a condom can be used over it and changed when the toy is moved.

When latex barriers are used, oil-based lubrication can break down the structure of the latex and remove the protection it provides.

Condoms (male or female) are used to protect against STIs, and used with other forms of contraception to improve contraceptive effectiveness. For example, simultaneously using both the male condom and spermicide (applied separately, not pre-lubricated) is believed to reduce perfect-use pregnancy rates to those seen among implant users. However, if two condoms are used simultaneously (male condom on top of male condom, or male condom inside female condom), this increases the chance of condom failure.

Proper use of barriers, such as condoms, depends on the cleanliness of surfaces of the barrier, handling can pass contamination to and from surfaces of the barrier unless care is taken.

Studies of latex condom performance during use reported breakage and slippage rates varying from 1.46% to 18.60%. Condoms must be put on before any bodily fluid could be exchanged, and they must be used also during oral sex.

Female condoms are made of two flexible polyurethane rings and a loose-fitting polyurethane sheath. According to laboratory testing, female condoms are effective in preventing the leakage of body fluids and therefore the transmission of STIs and HIV. Several studies show that between 50% and 73% of women who have used this type of condoms during intercourse find them as or more comfortable than male condoms. On the other hand, acceptability of these condoms among the male population is somewhat less, at approximately 40%. Because the cost of female condoms is higher than male condoms, there have been studies carried out with the aim of detecting whether they can be reused. Research has shown that structural integrity of polyurethane female condoms is not damaged during up to five uses if it is disinfected with water and household bleach. However, regardless of this study, specialists still recommend that female condoms are used only once and then discarded.