Chlamydia Infections: Risks, Testing, and Treatment - Urology

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Hello Dr.
Chen, I am a female.
Recently, I was tested and found to have a Chlamydia infection.
I informed my partner and advised him to get tested as well.
We went to different clinics, and his clinic also used urine testing.
The last time we had unprotected intercourse was about six months ago, and since then, we have always used condoms.
However, I cannot determine when I got infected because I have been experiencing yeast infections until I recently got tested and discovered my issue.
Is it possible that after six months, the Chlamydia in his body could resolve on its own, and therefore the urine test might not detect it? He dislikes taking medication and only takes cold medicine a couple of times (I read online that some people recover from a cold without medication).

Question 1: Given his situation, what is the likelihood that he will test positive this time?
Question 2: Besides sexual intercourse, what other reasons could lead to a Chlamydia infection? For example, could it be contracted through a needle stick?

1125, 20~29 year old female. Ask Date: 2016/05/05

Dr. Chen Jiansheng reply Urology


Hello, Miss:
1.
Chlamydia infection in males commonly presents as urethritis, while in females it is often seen as cervicitis.
The incubation period is approximately 1 to 3 weeks; however, more than half of the patients are often asymptomatic, making it difficult to determine when the infection occurred.
2.
Chlamydia is a type of Gram-negative bacteria, and once infected, it typically does not resolve on its own without treatment.
3.
The most commonly used testing method is Nucleic Acid Amplification Testing (NAAT), which has a sensitivity and accuracy of over 90%.
4.
Chlamydia infections are mostly transmitted through sexual intercourse, but literature reports indicate that it can also be transmitted during childbirth, oral sex, or anal sex.
There is no documented transmission through blood.
5.
The treatment for chlamydia infection is not complicated, and it is encouraged for partners to participate in treatment simultaneously (if infected), as even asymptomatic chlamydia infections carry a high risk of increasing the chances of future infertility for both men and women (such as blockage of the vas deferens or fallopian tubes).

Reply Date: 2016/05/05

More Info


Chlamydia infections are a common sexually transmitted infection (STI) caused by the bacterium Chlamydia trachomatis. Understanding the risks, testing, and treatment options for Chlamydia is crucial for both individual health and public health.

1. Understanding Chlamydia Infections:
Chlamydia is primarily transmitted through sexual contact, including vaginal, anal, and oral sex. It can infect both men and women, often without symptoms, which is why regular screening is important, especially for sexually active individuals under 25 or those with new or multiple partners. Symptoms can include abnormal discharge, burning sensation during urination, and pelvic pain, but many individuals may remain asymptomatic.

2. Risks and Transmission:
In your case, since you mentioned having unprotected sexual encounters six months ago, it is possible that you contracted Chlamydia during that time. However, it is also important to note that Chlamydia can sometimes remain dormant in the body for extended periods, which makes it difficult to pinpoint the exact time of infection.
Regarding your partner, if he has not experienced any symptoms, there is a chance that he might not have contracted the infection, but this is not guaranteed. Chlamydia can be asymptomatic, and without testing, it is impossible to know for sure. The likelihood of him testing positive depends on several factors, including the timing of exposure and whether he has been infected.

3. Testing for Chlamydia:
Testing for Chlamydia typically involves a urine sample or a swab from the genital area. In your partner's case, if he has had sexual contact with you and you have tested positive, it is advisable for him to get tested regardless of whether he has symptoms. The urine test is quite reliable, but if he has a very low bacterial load or if the infection has cleared on its own, there is a possibility that the test may yield a false negative. However, it is generally not common for Chlamydia to resolve without treatment.

4. Treatment Options:
Chlamydia is treatable with antibiotics, and both partners should be treated simultaneously to prevent reinfection. Commonly prescribed antibiotics include azithromycin (a single dose) or doxycycline (taken for seven days). It is crucial for your partner to follow through with treatment to avoid complications, such as pelvic inflammatory disease (PID) in women or epididymitis in men, which can lead to infertility.

5. Other Transmission Routes:
While sexual contact is the primary mode of transmission for Chlamydia, it is important to note that it is not typically transmitted through casual contact or non-sexual means. The concern about transmission through procedures like acupuncture or needle sharing is more relevant for bloodborne pathogens like HIV or Hepatitis, rather than Chlamydia. However, if unsterilized equipment is used, there is a risk of other infections, but Chlamydia specifically is not known to be transmitted this way.

In summary, it is essential for both you and your partner to undergo testing and treatment for Chlamydia. Encourage your partner to seek medical advice and consider the importance of completing the prescribed treatment. Regular screenings and safe sex practices, including the consistent use of condoms, are vital in preventing STIs and ensuring both partners' health. If you have further questions or concerns, consulting with a healthcare provider can provide personalized guidance and support.

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