Sexually transmitted infections (STIs) can spread through vaginal, anal, and oral sex. The chances of getting an STI through oral sex can be lowered by using a condom.
Oral sex carries a risk of contracting and transmitting certain STIs. Oral sex includes fellatio (oral sex on a penis), cunnilingus (oral sex on a vulva), and rimming (oral sex on an anus).
This article will discuss which STIs can spread through oral sex, how to prevent them, their symptoms, and when to see a doctor.
According to the
STI | Areas of infection | How it spreads |
---|---|---|
chlamydia | throat genitals urinary tract rectum | Giving oral sex to a partner with chlamydia that affects their penis, vagina, urinary tract, or rectum may result in infection of the throat. Receiving oral sex from a partner with chlamydia in their throat may result in infection of the penis, vagina, urinary tract, or rectum. |
gonorrhea | throat genitals urinary tract rectum | Giving oral sex to a partner with gonorrhea affecting their penis, vagina, urinary tract, or rectum may result in infection of the throat. Receiving oral sex from a partner with gonorrhea in their throat may result in infection of the penis, vagina, urinary tract, or rectum. |
syphilis | lips mouth throat genitals anus rectum | Giving oral sex to a partner with a syphilis sore or rash on their genitals or anus may result in infection of the lips, mouth, or throat. Receiving oral sex from a partner with a syphilis sore or rash on their lips, mouth, or throat may result in infection of the genitals, anus, or rectum. |
herpes | lips mouth throat genitals and surrounding areas anus rectum buttocks | Giving oral sex to a partner with herpes that affects their genital area, anus, rectum, or buttocks may result in infection of the lips, mouth, and throat. Receiving oral sex from a partner with herpes on the lips, mouth, or throat may result in infection of the genital area, anus, buttocks, or rectum. |
human papillomavirus (HPV) | mouth throat genital area penis vagina cervix anus rectum | Giving oral sex to a partner with HPV on their penis, vagina, anus, or genital area may result in infection of the throat. Receiving oral sex from a partner with HPV in their throat may result in infection of the penis, vagina, anus, rectum, or genital area. |
HIV | immune system | Giving oral sex on the penis, vagina, or anus of a partner with HIV may result in HIV infection. Receiving oral sex on the penis, vagina, or anus from a partner with HIV may result in HIV infection. |
There are several ways to prevent or reduce the risk of transmitting and contracting STIs. The sections below will discuss these in more detail.
Condoms
Condoms that cover the penis are a common type of barrier method of contraception.
There are three kinds of condom material. They can either be latex, plastic, or lambskin. Lambskin condoms can only help prevent pregnancy, not STIs.
Latex and plastic condoms protect against STIs by covering the penis and stopping it from coming into direct contact with the vagina or anus.
People should use a new condom whenever they start a different sexual activity. For example, a person should change their condom if they go from oral sex to anal sex. The same is true if they go from anal sex to vaginal sex.
Internal condoms
Internal condoms, or female condoms, are an alternative to the typical condoms that go over the penis. They provide the same amount of protection from STIs.
These condoms are plastic pouches that go inside the vagina or anus and cover some parts of the vulva and skin around the anus. This reduces a person’s risk of coming into contact with semen or skin that can spread STIs.
Dental dams
Dental dams are small latex or polyurethane sheets
If a dental dam is not available, it is possible to cut a latex or plastic condom in half and use that as a dental dam instead.
HPV vaccine
HPV is a very common STI. Certain types of HPV can result in cancer and genital warts.
However, scientists have developed a vaccine that protects people against HPV. The vaccine is available to everyone aged 9–45 years. It is best to vaccinate children before they become sexually active to reduce the risk of them contracting an STI in adulthood.
This vaccine is safe. The most common side effects are temporary pain and skin flushing at the site of the injection.
The vaccine can only prevent HPV. It cannot cure or treat strains of HPV that a person already has before they receive the vaccination.
Preexposure prophylaxis
Preexposure prophylaxis (PrEP), which takes the form of a daily pill, helps reduce a person’s risk of contracting HIV. In fact, if a person takes PrEP every day, it can lower their risk of contracting HIV from sex by more than 90%.
People at high risk of contracting HIV from sex may benefit from taking PrEP. A person may be suitable for PrEP if they:
- do not regularly use condoms
- have a sexual partner who has HIV
- have a sexual partner who is at high risk of having HIV
- have anal or vaginal sex with many partners, especially without the use of condoms
- have recently had another STI, such as chlamydia or gonorrhea
- do sex work that includes vaginal or anal sex
- have used injected drugs, shared needles, or had treatment for drug use within the past 6 months
STI | Symptoms | Complications |
---|---|---|
chlamydia | Many people do not have any symptoms, but if they do occur, they may include: a sore throat discharge from the vagina or penis that may be bloody a burning sensation when urinating pain and swelling of the testicles pain and discharge from the rectum | pelvic inflammatory disease, which may lead to pelvic pain, infertility, or non-viable pregnancies premature births or low birth weights (in babies born from a person with chlamydia) a chlamydia infection of the eyes or respiratory tract (in babies born from a person with chlamydia) pain and scarring of the ducts attached to the testicles a higher risk of contracting and transmitting STIs arthritis, conjunctivitis, and a rash on the soles of the feet |
gonorrhea | Most people will not experience any symptoms, but if symptoms do occur, they may include: discharge from the vagina or penis that may be bloody a burning sensation when urinating painful and swollen testicles pain and discharge from the rectum | pelvic inflammatory disease, which may lead to pelvic pain, infertility, and non-viable pregnancies premature births or low birth weights (in babies born from a person with gonorrhea) blindness, joint infections, or blood infections (in babies born from a person with gonorrhea) pain and scarring to the ducts attached to the testicles a higher risk of contracting and transmitting HIV skin sores and joint pain, which may spread to the heart and potentially lead to death |
syphilis | Some people have no symptoms, but some of the most common include: painless ulcers or sores on the lips, mouth, throat, skin, or genital or anal regions a rash on the torso, palms of the hands, or soles of the feet flu-like symptoms | a higher risk of stillbirths (without treatment) developmental delay, seizures, or death (in babies born from a person with syphilis) a higher risk of contracting and transmitting HIV muscle weakness and damage to internal organs blindness, dementia, and death |
herpes | Some people have no symptoms, but if symptoms do occur, they may include: headache or fever painful or itchy sores around the site of infection | a higher risk of contracting and transmitting HIV brain damage, internal organ damage, or death (in babies born from a person with herpes) |
HPV | Some people have no symptoms, but if they do occur, they may include: warts in the throat that may cause changes in voice, difficulty speaking, or shortness of breath genital or anal warts | cervical, anal, penile, head, and neck cancers (without treatment) |
HIV | Symptoms may not appear for several years, but when they do, they may resemble flu-like symptoms. | a higher risk of contracting infections and developing cancer (due to being immunocompromised) |
Most people will not experience any symptoms of STIs.
Therefore, it is very important that a person undergoes testing if they believe that they are at risk of having an STI.
This may be the case if they are engaging in unprotected sex, have a partner with an STI, or experience any symptoms — such as discharge — that are unusual for them.
People can undergo testing at a doctor’s office, a health clinic, or their local Planned Parenthood.
Some people’s health insurance may cover all or part of the costs associated with testing.
Most STIs are treatable. A medical professional can talk a person through the treatment and management of any STIs they may have.
Oral sex comes with a risk of contracting or transmitting STIs, just like any other sexual activity with a partner.
Some of the more common STIs include chlamydia, gonorrhea, herpes, and HPV.
People can prevent the spread of STIs by using a barrier method of contraception, such as a condom, and vaccinating against HPV. If a person is at high risk of contracting HIV, they may consider taking PrEP.
Most people do not experience any symptoms of STIs, but each infection can cause lifelong and harmful complications if a person does not seek treatment.
For this reason, it is important for people to undergo regular testing for STIs.