ABC Medical Center > Chlamydia trachomatis

What is Chlamydia trachomatis?

21:53 - 4 May , 2021


It is a sexually transmitted disease that mainly infects young women, but also affects men. The chlamydia trachomatis bacteria can cause infection of the genitals, mouth, or anus, depending on the type of sexual practice that has been performed.

A pregnant woman can transmit it to the baby, who is likely to suffer from pneumonia or serious eye infections.

Signs and symptoms Chlamydia trachomatis

Chlamydia, as it is also known, does not usually have symptoms at the beginning, which allows the infection to progress, but later the following appear:

In women:

  • Painful sexual intercourse.
  • Vaginal discharge
  • Discomfort or burning when urinating.
  • Vaginal bleeding after sexual activity and between menstrual periods.

In men:

  • Sore testicles.
  • Discomfort or burning when urinating.
  • Discharge from the penis
  • Testicular inflammation.

There may also be rectal discharge and bleeding, as well as eye infection when touching the eyes after contact with body fluids.

Possible complications:

  • Reactive arthritis.
  • Ectopic pregnancy.
  • Pelvic inflammatory disease.
  • Epididymitis.
  • Prostatic infection.
  • Infertility.

Potential risks:

  • Having a new sexual partner.
  • Having a sexual partner who has sex with several other people.
  • Having more than one sexual partner.
  • Having had a sexually transmitted disease.
  • Having unprotected sex.

Diagnosis and treatment Chlamydia trachomatis

After knowing your symptoms and medical history, your doctor will perform a physical examination and will order a urine test and, in the case of women, will take samples of discharge from the cervix for culture or antigen analysis to detect chlamydia.

In men, a sample will be taken from the urethra and, if required, from the anus. In addition, if deemed appropriate, he or she will request other tests to rule out other sexually transmitted diseases that sometimes accompany chlamydia, such as gonorrhea, syphilis, or AIDS.

The treatment to follow is the supply of antibiotics, either intravenously, orally, or both, your doctor will assess what is most appropriate for your case. This combination is used to prevent possible resistance of the bacteria to certain drugs.

The infection usually clears up in a couple of weeks, during which time you should avoid having sex. It is important that if you have a regular partner, both receive the treatment since if only one follows it, there will be reinfection.

In pregnant women, screening tests will be performed at the first prenatal visit and, if you have risk factors, they will be performed again during the third trimester. Screenings are required for both partners each year, or when you change partners.

If you were treated for chlamydia infection, you should have another test in about three months.

At ABC Medical Center’s Internal Medicine Department, we offer health care services with the highest quality and safety, from the prevention, diagnosis, timely treatment, and monitoring of infectious, respiratory, endocrinological, dermatological, rheumatic, nephrological, gastrointestinal, and hematological pathologies of both chronic-degenerative diseases and acute conditions, through a comprehensive and multidisciplinary model.


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  • immunology.org
  • medlineplus.gov
  • mayoclinic.org
  • msdmanuals.com
  • medigraphic.com
  • Sánchez-Alemán MA, Gutiérrez JP, Bertozzi SM, et al. Detección de Chlamydia trachomatis en orina por LCR: aplicación del método de mezcla de muestras biológicas. Rev Invest Clin. 2005;57(4):548-554.
  • Trujillo C, Moya-Salazar J, Rodríguez U, et al. Chlamydia trachomatis y su relación con la infertilidad de causa tubaria en mujeres sexualmente activas. Revista Cubana de Obstetricia y Ginecología. 2020;46(2):1-12.
  • Gutiérrez-Campos R, Gutiérrez-Santillán EA, Bravo-Aguirre DE, et al. Association between early miscarriage and Chlamydia trachomatis infection in Aguascalientes, Mexico. Rev Med Inst Mex Seguro Soc. 2020;58(1):21-27.
  • Peña MAB, Bonachea PRR, Beltrán MEM, et al. Daños y consecuencias de Chlamydia trachomatis en mujeres infértiles. Revista Cubana de Obstetricia y Ginecología. 2019;45(2):1-19.

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