STDs: Persistent Urethritis and Antibiotic Treatment Challenges - Urology

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Regarding sexually transmitted diseases (STDs)?


Recently, I experienced urethritis after engaging in unprotected sexual intercourse.
I have been experiencing itching in the urethra and yellow discharge.
I have seen a doctor and have been undergoing treatment and testing for four months.
I have taken various antibiotics, but my urine still shows elevated white blood cells, ranging from 10 to 15.
Despite four months of testing, no specific cause has been identified, and bacteria have not been cultured.
Three months after the last risky sexual encounter, I tested negative for both HIV and syphilis.
I would like to know if sexually transmitted infections such as syphilis and gonorrhea can go undetected due to antibiotic treatment.
Additionally, can syphilis cause an increase in white blood cells in the urine?

Mou Mou Mou, 10~19 year old female. Ask Date: 2016/10/26

Dr. Li Xinyi reply Urology


It sounds like there may be an incomplete treatment for gonorrhea.
It is advisable to see a urologist for further examination and follow-up, and to discuss this with the physician.

Reply Date: 2016/10/26

More Info


Persistent urethritis can be a challenging condition, especially when it follows unprotected sexual activity. The symptoms you describe, including urethral itching and yellow discharge, are indeed concerning and suggestive of a possible sexually transmitted infection (STI). However, the fact that you have undergone multiple antibiotic treatments without a definitive diagnosis or resolution of symptoms raises several important considerations.

Firstly, it is crucial to understand that some STIs, such as Chlamydia and Gonorrhea, can cause urethritis and may not always be detected in standard urine tests or cultures, especially if antibiotics were taken prior to testing. Antibiotics can suppress the growth of bacteria, which may lead to false-negative results in cultures. This is particularly relevant if the antibiotics were administered shortly before the testing was conducted. Therefore, if you were treated for a suspected STI, it is possible that the antibiotics could have masked the presence of the causative organisms.

Regarding your question about syphilis, it is important to note that syphilis does not typically cause an increase in white blood cells in the urine. However, it can lead to systemic symptoms and complications if left untreated. The presence of white blood cells in your urine is more indicative of an inflammatory response, which could be due to a variety of causes, including non-infectious conditions or other infections that may not be sexually transmitted.

Given that you have tested negative for HIV and syphilis, it would be prudent to consider other potential causes of your symptoms. Non-gonococcal urethritis (NGU) is often caused by Chlamydia trachomatis, but other pathogens, including Mycoplasma genitalium and Ureaplasma urealyticum, can also be responsible. These organisms may not be detected in standard STI screenings, and specific tests may be required to identify them.

In cases of persistent urethritis, it is essential to work closely with a healthcare provider who can conduct a thorough evaluation, including a detailed sexual history, physical examination, and possibly more specialized testing. This may include testing for less common pathogens or considering other conditions that could mimic urethritis, such as interstitial cystitis or prostatitis.

In terms of treatment, if a specific pathogen is identified, targeted antibiotic therapy should be initiated. If no pathogen is found, and symptoms persist, a trial of different antibiotics or adjunctive therapies may be warranted. Additionally, lifestyle modifications, such as increased hydration, avoiding irritants (like certain soaps or hygiene products), and practicing safe sex, can help manage symptoms and reduce the risk of recurrence.

Lastly, it is crucial to communicate openly with your healthcare provider about your symptoms, treatment history, and any concerns you may have. If you feel that your current treatment plan is not addressing your issues adequately, do not hesitate to seek a second opinion or ask for a referral to a specialist, such as a urologist or infectious disease expert, who may offer additional insights and treatment options.

In summary, persistent urethritis can be multifactorial, and while STIs are a common cause, other factors must be considered. Antibiotic treatment can complicate diagnosis, and further evaluation may be necessary to identify the underlying cause of your symptoms.

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