Chlamydia infection involves a unique two-stage life cycle: infectious Elementary Bodies (EBs) invade host cells, transform into metabolically active, replicating Reticulate Bodies (RBs), which multiply into many EBs, then burst the cell to infect others, a process often causing few symptoms but potentially leading to complications like PID, infertility, or neonatal issues if untreated.
Chlamydiae exist as two stages: (1) infectious particles called elementary bodies and (2) intracytoplasmic, reproductive forms called reticulate bodies. The chlamydiae consist of three species, C trachomatis, C psittaci, and C pneumoniae.
Levofloxacin is an effective treatment alternative but is more expensive. Erythromycin is no longer recommended because of the frequency of gastrointestinal side effects, which can result in nonadherence.
The LGV type of chlamydia can cause severe inflammation and can lead to genital ulcer, lymph node enlargement, or inflammation of the anorectal area with discharge, abdominal cramps, diarrhoea, constipation, fever or pain while passing stools.
Chlamydia damage can start quickly, even within weeks, but it often progresses silently for months or years, with longer untreated periods increasing severe risks like Pelvic Inflammatory Disease (PID), infertility (in women), and epididymitis (in men). Damage can begin as soon as the infection is introduced, but significant scarring and complications often accumulate over time, with some cases leading to infertility years later, highlighting why prompt treatment is crucial, especially since most people have no symptoms.
Symptoms of Chlamydia trachomatis infection can include:
You can have chlamydia for months or even years without knowing due to the asymptomatic nature of the infection. This means you will be infected, but symptoms won't be apparent. Chlamydia, if left untreated, can cause serious health problems and affect both female and male fertility.
Causes and risk factors
The bacteria tend to infect the urethra and cervix, but they can also get into the rectum, mouth, throat, or eyes. You can get chlamydia by having sex with an infected person. The risk is higher if you have sex with lots of different partners and don't use condoms.
The origins of both sexually transmitted and ocular C. trachomatis are unclear, but it seems likely that they evolved with humans and shared a common ancestor with environmental chlamydiae some 700 million years ago. Subsequently, evolution within mammalian cells has been accompanied by radical reduction in the C.
Chlamydia itself doesn't typically cause pimple-like bumps, but it can lead to symptoms that might make you think something is off with your skin.
The Centers for Disease Control and Prevention (CDC) recommends azithromycin and doxycycline as first-line drugs for the treatment of chlamydial infection. Second-line drugs (eg, erythromycin, penicillins, and sulfamethoxazole) are less effective and have more adverse effects.
Key findings. In this randomized controlled trial comparing 2 antibiotic therapies for CE, no significant difference was observed in the CE cure rate between doxycycline alone and levofloxacin with tinidazole after one course of antibiotic treatment (P=. 225).
How long doxycycline takes to work depends on what you're treating and what your symptoms are. Symptoms like fever may improve within 1 to 2 days. But it may take 1 to 2 weeks (or longer) to fully treat your infection. For acne or rosacea, it may take months to see full benefits.
Go to a sexual health clinic or see a GP if:
you or a sexual partner think you might have chlamydia. you or a sexual partner have had sex without a condom. you're pregnant or planning to get pregnant and think you might have chlamydia.
Chlamydia can be cleared up with antibiotics in about a week or two. But don't stop taking your medication just because your symptoms improve. Ask your provider about what follow-up is needed to be sure your infection is gone after you've finished taking your medicine. Chlamydia infection can recur.
Late-stage chlamydia refers to an infection that has spread to other parts of the body. For example, it may have spread to the cervix (cervicitis), testicular tubes (epididymitis), eyes (conjunctivitis), or throat (pharyngitis), causing inflammation and pain.
Many animal species can have chlamydiosis. Sheep, goats and cats are the most commonly affected. It is less common in cattle and lla- mas. Other animals species that can become ill include deer, guinea pigs, and mice.
Nearly every sexually active person will have HPV at some point. It is the most common sexually transmitted infection in the U.S. More than 40 types of HPV can be spread sexually.
A urine test is about 87% accurate, but a swab test is about 94% accurate.
These include Chlamydia, Gonorrhoea, and Syphilis. The good news is that because they are bacterial, these infections can typically be cured with a course of antibiotics prescribed by a doctor. These infections are spread through sexual fluids and direct contact during vaginal, anal, or oral sex, not by poor hygiene.
Chlamydia is effectively treated with antibiotics. If left untreated, chlamydia can cause pelvic inflammatory disease (PID) in people with a vagina and lead to chronic pain and infertility. In people with a penis, untreated chlamydia can cause pain and swelling in one or both testicles.
As a result of that study, the authors proposed that “a reservoir of chlamydial infection in women exists in the rectum as well as in the genital tract” (39). That men and women can be infected orally was demonstrated by Jones and colleagues.
With or without symptoms, you may be wondering how long can chlamydia last if it goes untreated. An untreated chlamydia infection can last weeks, months, or even years without being detected and cause long-lasting health effects.
Chlamydia is usually treated with the antibiotic doxycycline 100mg taken twice daily for 7 days. There is an alternative treatment for patients who are intolerant/allergic to doxycycline: azithromycin 1g as a single dose followed by 500mg daily for 2 days.
Myth: Oral contraception can protect against chlamydia
Male and female condoms are the only methods of contraception that will help protect you from getting and passing on chlamydia and other STIs.