Chlamydia is a sexually transmitted infection (STI) that can sometimes infect the mucous membranes of the throat. It does not usually cause symptoms, but it may lead to a sore throat. Treatment is typically with antibiotics.
Chlamydia of the throat can sometimes cause a sore throat, but it often does not produce any symptoms. In some people, the infection develops in both the throat and the genitals.
This article outlines the symptoms, appearance, and causes of chlamydia in the throat. It also provides information on chlamydia transmission, testing, prevention, diagnosis, treatment, and more.
A note about sex and gender
Sex and gender exist on spectrums. This article will use the terms “male,” “female,” or both to refer to sex assigned at birth. Click here to learn more.
For people with chlamydia of the throat who do experience symptoms, these may include:
- pain in the mouth, throat, or both
- redness in the mouth or throat
- white spots toward the back of the mouth
- sores in the mouth or around the lips
- swollen lymph nodes
- possible fever
- increased risk of dental problems
Even if a person does not have any symptoms, the infection can still pass from them to others. This is also the case for chlamydia of the genitals.
A chlamydia infection can spread through genital-to-genital contact or pass from the genitals to the throat.
Chlamydia affecting the genitals can cause various symptoms.
- Symptoms affecting the vagina:
- Symptoms affecting the penis:
- burning during urination
- itching or burning around the opening of the penis
- Symptoms affecting the anus:
- burning or itching
- pain during bowel movements
If symptoms occur, they often begin 1–3 weeks after the initial infection.
Learn more about when chlamydia symptoms appear.
People may describe chlamydia in the throat as “
The majority of people who get chlamydia in the throat do not show any symptoms. However, if a person does develop symptoms, they will most likely experience a sore throat due to inflammation.
Chlamydia is a bacterial infection. People can contract chlamydia as a result of coming into contact with vaginal fluid or semen that contains the bacteria. This contact can occur through:
- having unprotected vaginal, anal, or oral sex
- having genital-to-genital contact
- sharing unwashed sex toys or using them without barrier protection
- getting infected semen or vaginal fluid in the eye
Oral sex is not a common way of contracting chlamydia because the bacteria prefer the mucous membranes of the vagina, penis, or anus to those of the throat. However, if a person does develop chlamydia in the throat, oral sex is the most common cause.
A person cannot get chlamydia through:
- sharing towels or clothes
- coming into contact with a toilet seat
Learn which other STIs a person can get from oral sex.
A person can develop chlamydia of the throat through
A person who has chlamydia may be unaware that they have it, as the infection does not always cause symptoms. For this reason, it is important to use barrier protection during vaginal, anal, or oral sex and to undergo regular testing.
In addition to regular testing, people can also receive an occasional STI check. This can be especially helpful if:
- there are any signs of an infection
- a sexual partner has had a positive test result
- a person is pregnant
- using latex or plastic condoms that are not lubricated
- using a dental dam during vaginal or anal contact
- avoiding sexual contact if sores are present in the mouth
- having regular STI checks
When diagnosing chlamydia of the throat, a doctor may use a cotton swab to obtain a fluid sample, which they will send to an external lab for bacterial testing.
A person who has symptoms of chlamydia in the throat or has had oral sex without using barrier protection may need to request a throat swab in addition to the vaginal swab or urine sample.
If the results of the chlamydia test are positive, the person should inform any recent sexual partners so that they can also undergo testing and receive treatment if necessary.
A person who takes the single dose should avoid sexual contact for 7 days. A person who takes the 7-day course can resume sexual activity after completing the course.
As the risk of a repeated infection is high, a person should get another test about 3 months after their treatment.
Here are some answers to common questions about chlamydia in the throat.
How long does chlamydia of the throat take to show up?
Most people who have chlamydia of the throat will not experience any symptoms. If symptoms do develop, they typically appear 1–3 weeks after sexual contact with the individual who has the infection.
It is important to note that chlamydia can still transmit from a person who does not experience any symptoms of the disease.
Is chlamydia of the throat common?
Although chlamydia is the most
A small 2021 study involving 140 men who have sex with men (MSM) found that 1.4% of the participants had chlamydia of the throat.
Other research has shown that extra-genital chlamydia is
Engaging in sex with people who carry the bacteria without using barrier protection can contribute to the spread of the infection.
How can a person tell the difference between strep throat and chlamydia?
Strep throat is an infection caused by the bacteria group A Streptococcus. Some symptoms of strep throat are similar to those of chlamydia in the throat, including redness, pain, and white spots near the back of the mouth. While symptoms of chlamydia in the throat can take 1–3 weeks to appear after transmission, strep throat symptoms can develop within
The best way to tell the difference is with medical testing. A doctor can take a fluid sample and send it to a laboratory to confirm the diagnosis.
Learn more about how to recognize strep throat.
Chlamydia of the throat is not common. However, a person can contract chlamydia of the throat as a result of performing oral sex on a person who has chlamydia.
People can prevent chlamydia and other STIs by using a barrier method, such as a condom or dental dam, during all forms of sexual activity. It is also important to undergo regular STI checks. Anyone who receives a positive test result should notify all recent sexual partners so that they can receive treatment if necessary.
A doctor can treat chlamydia with a short course of antibiotics. However, due to the high risk of reinfection, people who have tested positive for chlamydia should take additional precautions during sexual activity.