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Chlamydia is one of the most common sexually transmitted diseases. These infections also referred to as STDs, STIs, or venereal disease, are primarily spread through genital or bodily fluids contact. They are also caused by viruses, bacteria, and parasites.
Chlamydia trachomatis bacteria is the cause of chlamydia and can be transmitted through vaginal, anal, or oral sex.
Often, people with chlamydia may not realize they are infected because they don’t experience any symptoms like genital pain and vaginal or penile discharge. Although chlamydia trachomatis mainly affects younger women, it can also occur in men and women of all ages.
Chlamydia is an easily treatable condition. However, it could cause more severe health complications if left untreated.
By Able Health I Medically reviewed by Dr. Alireza Estedlal
Page last reviewed: February 2024 I Next review due: February 2026
Chlamydia is a bacterial infection often caused by bacterium Chlamydia trachomatis. It may be contracted through sexual contact, including oral, vaginal, or anal sex with an infected person. The bacteria can infect the urethra, cervix, rectum, or throat. On the other hand, it should be noted that chlamydia might still be transmittable despite the absence of noticeable signs and symptoms.
A number of risk factors increase the chances of acquiring chlamydia infection. Examples are having several sexual partners, being sexually active at an early age, unprotected sexual intercourse, and a history of STIs. Furthermore, persons who don’t constantly or properly use condoms have higher risks of contracting the infection.
Typically, Chlamydia trachomatis infections cause a few symptoms during the early stages. These symptoms are usually mild when they do occur and, hence, can easily be ignored. Regular screening is thus important to ensure early detection and prevent other serious problems.
Based on the sexual activity of an individual, Chlamydia trachomatis can also infect the following areas:
Chlamydia trachomatis bacterium is mostly transmitted through vaginal, oral, or anal sex. In some cases, the bacterium can also spread from the mother to the baby during childbirth. This could cause pneumonia or severe eye infection in the infant.
For individuals who have chlamydia symptoms, the Centres for Disease Control and Prevention (CDC) advises immediate testing for the infection. Moreover, discussing with your medical provider how frequently you should undergo screening for chlamydia, irrespective of the symptoms, is crucial. Generally, certain groups require more regular screening compared to others. They include:
Chlamydia infection screening and diagnosis involves quite simple tests, including:
You can book an appointment with a private GP today for only £20*.
Book an appointmentIf you suspect chlamydia, your medical provider can test you, or you can alternatively use any accessible test without a prescription. Also, consider retesting in three months if you have had treatment for an initial infection.
Antibiotics can help clear chlamydia infection within one or two weeks. However, you should ensure that you finish the full course of medication even if the symptoms get better. Most importantly, consult with your physician about any necessary follow-up after completing your prescription. This is to ensure the infection is cleared and to prevent recurrence.
The chlamydia treatment plan should include measures like avoiding intercourse that could cause reinfection and ensuring your potentially infected sexual partner receives treatment. You should also practice the following:
While antibiotics can eliminate your chlamydia infection, they cannot reverse any damage in the body caused by bacteria. Because of this, regular screening, visiting your doctor as soon as you notice symptoms, and immediate treatment if infected are very important.
If not treated, chlamydia can pose various health risks. So, if you suspect chlamydia symptoms, schedule an appointment with your doctor right away. Also, routine STI screening should be considered to prevent future complications.
If left untreated, chlamydia could cause the following complications in women and people assigned female at birth (AFAB):
Untreated chlamydia in men and those assigned male at birth (AMAB) can cause complications such as:
If left untreated, chlamydia infection could spread to the bloodstream, increasing the risks of these conditions:
Once you start taking medications, you should feel better in a week. However, ensure that you finish your antibiotics prescription even if the symptoms are improving.
Avoid any sexual activities (vaginal, oral, or anal) with anyone for at least 7 days after starting treatment. This allows the antibiotics to work effectively and prevent you from infecting your partners. Also, after treatment, continue practicing safe intercourse and consider STI testing as part of your routine health care.
The best-guaranteed way of preventing chlamydia infection is abstaining from sexual activities. Alternatively, you can consider other preventive measures like:
Chlamydia infection that is not treated on time can result in serious fertility problems. In females, untreated chlamydia can cause PID, which damages the reproductive organs and leads to scarring. This can block the tubes, hindering the egg from getting to the uterus and increasing the possibility of having an ectopic pregnancy.
On the other hand, untreated chlamydia in males can lead to epididymitis, an inflammation of the sperm-carrying tube (epididymis). This could cause infertility or a lower fertility rate.
Early diagnosis and treatment are thus important to maintain fertility and avoid permanent complications.
During pregnancy, chlamydia can put the mother and the child at risk. In most cases, untreated chlamydia infection can increase the possibility of low birth weight, premature birth, and neonatal pneumonia in infants. In addition, it could cause complications like miscarriage and stillbirth.
For that reason, chlamydia screening early in pregnancy should be done, particularly for women with multiple sex partners or those who have unprotected intercourse. Antibiotic treatment during pregnancy can be recommended since it is safe and can prevent complications.
Teenagers and young adults are at a high risk of contracting chlamydia because of factors like increased sexual activities, STI unawareness, and inconsistent protection use. Approximately 50% of all new cases of chlamydia occur in persons between the ages of 15 to 24.
Sexual education and preventive initiatives focused on young individuals are thus essential in reducing chlamydia incidence. This involves encouraging safe sexual practices, offering comprehensive sex education in schools, and enhancing accessibility to testing and treatment facilities.
In general, safe sexual practices are essential in the prevention of chlamydia infection transmission. The most effective approach to reducing the risk is correctly and consistently using condoms during sexual intercourse. Condoms lower the possibility of transmission by acting as a barrier that prevents the infected areas from coming into direct contact.
Additional safe sex practices are regular STI testing, limiting sexual partners, and having open conversations regarding sexual health with your partners. It is also crucial to note that chlamydia can be transmittable despite the absence of noticeable symptoms, hence the importance of constantly engaging in safe sex.
Chlamydia frequently coexists with other STIs, including syphilis or gonorrhea. Mostly, multiple STI co-infections can make treatment difficult and increase complication risks. Therefore, if you suspect an infection or have a new sexual partner, you should consider getting screened for multiple STIs.
Treatment options for co-infection can include a combination of antibiotics in order to successfully target all existing infections. It’s also important to adhere to the prescribed treatment plan and finish the full course of medications to eliminate infections completely.
Not all cases of chlamydia have an odor. However, unusual vaginal discharge with a foul smell is one of chlamydia symptoms.
You can contract chlamydia infection if your partner had sexual intercourse with an infected person and then had sex with you. Individuals in relationships might have varying thoughts on what constitutes ‘cheating’ in terms of sexual contact, and this misconception could result in infections.
Be open and honest with your partner regarding the kind of sexual activities you are having and what they are engaging in as well. Most importantly, practice safe sex to lower your chances of contracting chlamydia infection and get regular screening.
Chlamydia symptoms may take weeks, months, or even years to appear. Sometimes, you may have no noticeable symptoms and are unaware that you have the infection. This implies that you might have contracted chlamydia from your past sex partners. It’s therefore recommended to get tested if you’ve had unprotected sex with multiple partners.