In Spanish (En Español)
Updated May 2012
Serious, even life-threatening infections like HIV, syphilis, and other sexually transmitted diseases (STDs) can be passed from one person to another through sex. Safer sex is sex that reduces the chances of spreading or getting STDs. It involves certain actions (e.g., using a condom) that prevent person-to-person sharing of the bodily fluids that can spread STDs. Choosing to have safer sex shows that you care about the pleasure and health of yourself and your sexual partner(s).
Safer sex is not only for the prevention of new HIV infections. For people living with HIV (HIV+), safer sex is important because it can prevent infection with other STDs that can weaken the immune system. If both people are HIV+, safer sex can also reduce the possibility of getting infected with another strain of HIV that is resistant to the HIV drugs you are taking.
Safer sex can be fun, exciting, and very pleasurable. It can decrease your worry about getting or spreading STDs, which can in turn make your sex more relaxed and satisfying. It is also a great chance to add variety to your sex life and to build trust and intimacy with your partner by talking about each other’s desires.
Practicing safer sex involves knowing what bodily fluids can spread STDs, what sexual activities are risky for each person, and how you can make that activity less risky. Bodily fluids that can spread STDs include blood, vaginal secretions, and semen (cum and pre-cum).
Since every sexual act that involves sexual fluids or blood has some risk, safer sex means using barriers to prevent passing fluids into another’s body. Barriers include condoms (male and female), dental dams (thin squares of latex), and latex or nitrile gloves. Barriers can help reduce the risk of spreading or getting STDs by keeping one partner’s fluids from getting into or onto the other partner. There are also several sexual activities that do not pass sexual fluids or blood between bodies and therefore have very little risk.
It can be helpful to know which sexual acts are more risky than others for HIV. The risk for a specific sexual act is determined by what bodily fluids are being exchanged and what part of the body is involved. Below is a list of common sexual activities, their risks, and tips for making them safer:
Receptive vaginal-penile sex, or heterosexual intercourse, refers to sex in which the penis goes into the vagina. It is considered a high-risk activity and the most common way that HIV is spread worldwide. While it is high risk for both women and men, HIV+ men are much more likely to spread infection to women than HIV+ women are to infect men.
The best way to make vaginal-penile sex safer is to use a condom (rubber). There are two main types of condoms: male condoms and female condoms. Most male condoms are made of latex; some are made of polyisoprene (a type of plastic) or lambskin. Lambskin condoms can prevent pregnancy; however, they do NOT prevent the spread of HIV. Only latex and plastic condoms prevent the spread of HIV.
Male condoms come in a variety of shapes, sizes, colors, textures, and even tastes. They are generally inexpensive and can be found at pharmacies, grocery stores, and sex stores. Sometimes they are available for free at certain health clinics and AIDS-service organizations. They are also quite small and easy to carry with you so that you can always be prepared to protect yourself.
Female condoms are made of latex or polyurethane and can be put inside the vagina before you begin sexual activity. They usually cost a bit more than male condoms and are available at pharmacies, grocery stores, and sex stores. They are also available for free at certain health clinics and AIDS service organizations.
To make vaginal-penile sex even safer, consider using lubricant (‘lube’). Lube can prevent the condom from breaking and also helps prevent small cuts or tears in the vagina and on the penis during penetration. Lube is good for un-lubricated condoms as well as ones that come already lubricated; sometimes the lubrication on the condoms is not enough.
When using latex condoms, use only water- or silicone-based lube. Do not use oil-based lubes like Vaseline, Crisco, shea butter, or baby oil with latex condoms because they weaken the condom and make it more likely to break. Silicone-based lube will last longer than water-based lube. Lube can also make the condom feel better. There are several types and brands of lubes, with a variety of different feels and tastes. Some also contain substances that ‘warm’ or enhance sensation.
If you are not using a condom, you can avoid getting semen in the vagina by having a man pull out before ejaculating (cumming, reaching orgasm). It is important to know, however, that HIV can be in pre-cum, the fluid that comes out of the penis before orgasm. Therefore, having a man pull out before orgasm is not a guarantee that you will not get HIV or other STDs spread through male sexual fluids.
Receptive anal-penile sex refers to sex in which the penis enters the anus or butt-hole. It is a high-risk activity. While the risk for the insertive male partner is much lower than for the receptive partner, it is still risky. As with vaginal-penile sex, the best way to make anal-penile sex safer is to use a condom and lube.
When using latex condoms, use only water- or silicone-based lubricant to prevent the condom from breaking and help the condom feel better. Lube will also help prevent small cuts or tears to the rectum, anus, or penis during penetration. Do not use oil-based lubes like Vaseline, Crisco, shea butter, or baby oil with latex condoms because they weaken the condom and make it more likely to break. There are several types and brands of lubes, with a variety of different feels and tastes. Currently, there is research going on to look at which type of lube is best for anal sex. However, there is not enough evidence yet to make recommendations about which lube is safest.
If you are not using a condom, you can avoid getting semen in the anus by having a man pull out before ejaculating (cumming, reaching orgasm). It is important to know, however, that HIV can be in pre-cum, the fluid that comes out of the penis before orgasm. Therefore, having a man pull out before orgasm is not a guarantee that you will not get HIV or other STDs spread through male sexual fluids.
Oral sex involves contact between the mouth and the genitals. It includes giving or receiving licking, sucking, or biting of the vulva (vagina, clitoris, and labia, or "lips"), penis, or anus. A number of studies have demonstrated a low but definite level of risk associated with both giving and receiving oral-penile sex. To make it safer, use an unlubricated latex condom (one that does not have lube on it). If you perform oral-penile sex without a condom, finish up with your hand, or spit semen out and rinse with mouthwash rather than swallowing.
There have been rare but documented cases of HIV being spread from female-to-male and female-to-female during oral-vaginal sex. To make oral sex on a woman safer, use a dental dam or a condom that has been cut open. Dental dams are squares made from latex. Put some water- or silicone-based lube on one side of the dental dam or cut-open condom. Then stretch the dam or condom over the vagina with the lubed side facing away from your mouth. This gives you a thin barrier between your mouth and the vagina. Some people use plastic food wrap instead of dental dams or cut-open condoms. Plastic food wrap may prevent the transmission of herpes infections, but there is no proof that it can prevent the transmission of HIV.
Oral-anal sex has been shown to spread hepatitis A and B, as well as other infections. To make oral-anal sex on a man or woman safer, use a dental dam or a condom that has been cut open. Put some water- or silicone-based lube on one side of the dental dam or cut-open condom. Then stretch the dam or condom over the anus with the lubed side facing away from your mouth. This gives you a thin barrier between your mouth and the anus.
If you do not use a barrier during oral sex, avoid getting pre-cum, semen, or vaginal fluids in your mouth. Avoid oral sex on a woman who is menstruating (having her period) to prevent contact with blood. Bleeding gums, ulcers, or gum disease can make oral sex much riskier. If you have any of these, use a mint instead of brushing your teeth before sex.
It is also possible to spread or get STDs by using sex toys. Many people like to use vibrators, dildos, butt plugs, and strap-ons as part of sex play. Sex toys need to be kept clean, whether they are used alone or with partners. If they are not cleaned after each use, they can grow bacteria and cause an infection. Because sex toys are made of different materials – silicone, rubber, vinyl, metal, etc. – they must be cleaned in different ways. Be sure to read the instructions on the package insert to see how to clean your toy properly.
As with other forms of sex, making sex toy play safer involves using a barrier to prevent each person’s bodily fluids from touching the other person. The best way to keep dildos, vibrators, and butt plugs clean is to use them with a latex condom. Be sure to use a fresh condom whenever the toy is used by a different person or in a different location (e.g., moves from vagina to anus or vice-versa). Having sex toys that are not shared and only used by one person can reduce the chances of passing STDs between partners. However, it is still important to clean the toy after each use and to use a fresh condom whenever the toy is used in a different location.
It also helps to use lube with sex toys, both to enhance pleasure and to reduce damage to the tissues that line the vagina, mouth, anus, and rectum. Do not use oil-based lubes like Vaseline, Crisco, shea butter, or baby oil with latex condoms because they weaken condoms and make them more likely to break. Also, do not use silicone-based lube with silicone sex toys, as it will destroy the sex toy.
Paper cuts and other openings in the skin can make your hands vulnerable to infection. Wearing latex or nitrile gloves keeps you protected during hand-vagina, hand-penis, or hand-anus sex. Adding water- or silicone-based lube to the outside of the gloves can increase your partner’s pleasure.
These activities do not spread STDs because there is no person-to-person physical contact:
- Abstinence: not having sex
- Masturbation: touching yourself
- Phone sex, cybersex, talking dirty, and sharing sexual fantasies
It can be helpful to limit the time and frequency of penetrative sex. Repeated or rough vaginal, anal, and oral sex play can cause damage to the linings of these areas. Since these linings are the body’s barrier to STDs, damaging or tearing them will increase the chance that being exposed to an infected bodily fluid of another will result in infection.
Try non-insertive sex. For example, consider hugging, touching, massage, or mutual masturbation (touching each other’s genitals). Also get medical attention for any infections or health problems in the genital area.
Sometimes the safest thing you can do in sex is have a clear head. When you are under the influence of drugs or alcohol, you are more likely to make bad decisions and have unsafe sex. It is also a good idea to plan ahead: get your safer sex items (condoms, dental dams, gloves, lube, etc.) before you find yourself in a sexual situation. That way, you have what you need to protect yourself whenever the need arises.
It can be helpful to think through things that make it difficult for you to practice safer sex. Doing this can help you be safer when you find yourself in a sexual situation. Because our thoughts affect how we act, it can also be helpful to think about things in new ways. Here are some examples:
- "We slipped once and forgot to use a condom, so it is too late now."
- New idea: It is never too late. Yes, even one time can be dangerous, but it is not as dangerous as many more times! If you slipped once, it is time to get back on the wagon.
- "Safer sex is such a drag. It is no fun."
- New idea: Here is a great chance to spice up your sex life. Why not take one of the workshops offered on "Eroticizing Safer Sex?" How about getting a book, video, or DVD about hot safer sex?
- "I can not feel anything through condoms!"
- New idea: Time to change brands! Getting free condoms at the health office or buying them at a drugstore may be cheap, but you are probably not getting the best around. Try some of the variety packs offered by mail-order sex supply catalogs or hit the "adult love" stores in your area for a better selection. The best condoms are thin but tough and transmit heat and sensation well.
- "My partner absolutely refuses to use a condom."
- New idea: How comfortable are you with someone who is willing to put your health and life at risk? This sounds like a serious issue, and it is probably not the only one in your relationship. Have you considered individual or couple counseling? Also see our info sheet on Negotiating for Condom Use.
- “I’m afraid that my partner will hurt me if I suggest that he use a condom.”
- New idea: How about inserting a female condom before sex begins? Or perhaps you could offer to put a condom on his penis with your mouth. If you feel threatened, please read The Well Project's Domestic Violence info sheet.
- "I cannot suggest to my partner that we get an HIV test. We have been together so long that s/he would take it as an insult."
- New idea: How about presenting it as an act of love? "You know, I really love you. We have been together for a while, but we never got tested for HIV. I hate the thought that I could be putting you at risk, because I could not stand to hurt you. Why don't we go get tested together for our peace of mind?"