About Non-Gonococcal Urethritis

Overview
Non-gonococcal urethritis (NGU) is a condition where the urethra, the tube through which urine exits the body, becomes inflamed. It is called "non-gonococcal" because it is caused by something other than gonorrhea, a sexually transmitted infection. NGU can be caused by bacteria or, less commonly, viruses that are spread through vaginal, oral, or anal sex. The most common cause of NGU is chlamydia, but other organisms can also lead to this condition. Symptoms of NGU may include soreness or irritation on the tip of the penis, a burning sensation when urinating, and a cloudy or pale discharge from the penis. If left untreated, NGU can spread to the testicles or prostate gland and may even lead to infertility. If you suspect you have NGU, it's important to see a healthcare provider for diagnosis and treatment. Antibiotics are usually prescribed to fight the infection, and recovery typically takes about 7 days. During this time, it's important to avoid sexual activity to prevent spreading the infection.
Causes and Risk Factors

Non-gonococcal urethritis can be caused by various factors, including bacterial and viral infections. The most common causes of NGU are:

  • Chlamydia trachomatis: This bacterium is responsible for up to 50% of NGU cases.
  • Mycoplasma genitalium: This bacterium is believed to cause 15-50% of NGU cases.
  • Trichomonas vaginalis: This parasite can also cause NGU, but it is less common.
  • Other pathogens: Less commonly, NGU can be caused by Herpes simplex virus 1, Herpes simplex virus 2, Adenovirus, Haemophilus influenzae, or Mycoplasma penetrans.

It's important to note that in some cases, the exact cause of NGU cannot be identified.

Risk factors associated with NGU include:

  • History of previous surgeries: If someone has had previous surgeries, they may have an increased risk of developing NGU.
  • History of preterm premature rupture of membranes (PRPM): PRPM refers to the rupture of the amniotic sac before 37 weeks of gestation. If someone has a history of PRPM, they may be more prone to developing NGU.
  • Vaginal bleeding: Women who have experienced vaginal bleeding may have a higher risk of developing NGU.
  • Placenta previa and placental abruption: These are conditions related to the position and detachment of the placenta during pregnancy and can increase the risk of developing NGU.
  • Marginal insertion of the umbilical cord: When the umbilical cord attaches at the edge of the placenta instead of at its center, it is called marginal insertion. This condition is associated with an increased risk of NGU.
  • Uterine hyperdistension: Uterine hyperdistension refers to excessive stretching or distension of the uterus, often due to multiple pregnancies or polyhydramnios (excessive amniotic fluid). It is linked to an increased risk of NGU.
  • Cervicovaginitis: Inflammation or infection in the cervix and vagina can increase the risk of developing NGU.
  • Smoking: Smoking has been identified as a modifiable risk factor for NGU.
  • Intercourse: Engaging in sexual activity without proper protection can increase the risk of acquiring infections that can lead to NGU.
  • Vitamin C and mineral deficiency: Inadequate intake or deficiency in certain vitamins and minerals may contribute to an increased susceptibility to infections that cause NGU.
  • Repeated cervical examinations: Frequent cervical examinations may increase the risk of developing NGU.

It's important to remember that if you suspect you have NGU or have concerns about your sexual health, it's best to see a healthcare professional for proper diagnosis and treatment. They can prescribe antibiotics if necessary and provide guidance on prevention and safe sexual practices.

Symptoms

One of the most common causes of NGU is chlamydia, but other organisms can also lead to this condition.

Symptoms of NGU in males can include:

  • Soreness or irritation on the tip of the penis
  • Burning sensation when urinating
  • Cloudy, pale, and sometimes smelly discharge from the penis
  • If left untreated or if the infection progresses to a more severe stage, NGU can lead to complications such as epididymitis (inflammation of the testicle) or prostatitis (inflammation of the prostate gland). In some cases, NGU may even result in infertility.

Some people with NGU do not have symptoms, however symptoms of NGU in females can include:

  • Vaginal discharge
  • Burning sensation or pain when urinating
  • Pain during sexual intercourse
  • Spotting or cramping

It's important to see a healthcare provider if you suspect you have NGU.

Diagnosis

To diagnose non-gonococcal urethritis, several examinations, tests, and procedures are commonly performed. These include:

  • Swab Collection: A visible discharge or secretions can be collected by a swab without inserting it into the urethra. If no visible secretions are present, the swab can be inserted into the urethral opening and rotated to make contact with the urethral wall before removal.
  • Microscopy: Microscopic examination of the swab or sediment from a spun first-void urine sample can be performed to check for the presence of white blood cells (leukocytes). A high number of white blood cells (10 or more per high-power field) indicates inflammation and suggests NGU.
  • Urine Testing: If microscopy is unavailable, urine testing for leukocyte esterase can be performed on the first-void urine sample. If the microscopic examination of the sediment from the urine sample shows 10 or more white blood cells per high-power field, it has a high negative predictive value for NGU.
  • Nucleic Acid Amplification Testing (NAATs): All men with suspected or confirmed NGU should be tested for chlamydia and gonorrhea using NAATs. These tests detect the genetic material (DNA or RNA) of these bacteria, providing accurate results.

In addition to these diagnostic tests, there are additional examinations, tests, and procedures that can help determine the stage or severity of NGU including:

  • Physical Examination: A healthcare provider may perform a physical examination to assess various areas related to NGU. This includes inspecting the upper thighs, perineal region, outer labia (in females), and skin irritations that may indicate prolonged moisture or use of unsuitable urinary incontinence products.
  • Vaginal Examination: For individuals with a vagina, a healthcare provider may perform a vaginal examination to assess any signs of vaginitis (redness and dryness instead of normal pink and moist appearance), abnormal discharge with offensive smell (leukorrhea), and signs of anterior or posterior vaginal wall defects or tissue quality.
  • Anorectal Examination: An anorectal examination may be performed to assess any signs of hemorrhoids, anal gaping at rest, fissures, and neurological reflexes related to the anus.
  • Additional Testing: In some cases, additional testing may be recommended based on specific circumstances. For example, testing for Trichomonas vaginalis may be considered in areas with high prevalence rates or among individuals with persistent or recurrent symptoms after initial treatment.
Treatment Options

The goals of treatment for NGU are to relieve symptoms, eradicate the infection, prevent complications, and reduce the risk of transmission. To achieve these goals, various treatment options and approaches are recommended. Here are the medication types, therapies, therapeutic procedures, health behavior changes, and other treatments commonly used for NGU:

Medications

Antibiotics: Antibiotics are the mainstay of treatment for NGU. They help eliminate the infection causing NGU and relieve symptoms. It usually takes about 7 days to recover after starting treatment. The most commonly prescribed antibiotics for NGU include:

  • Azithromycin: This antibiotic is often used as a first-line treatment for NGU. It works by inhibiting the growth of bacteria responsible for causing NGU.
  • Doxycycline: Doxycycline is another commonly used antibiotic for NGU. It helps kill bacteria and reduce inflammation in the urethra.

It's important to complete the full course of antibiotics as prescribed by your doctor, even if your symptoms improve before finishing the medication. This helps ensure that all bacteria or viruses causing NGU are eliminated from your body.

Therapeutic Procedures

In some cases where symptoms persist after completing antibiotic therapy, further testing may be recommended. This can involve objective documentation of urethritis and testing for specific pathogens such as MG and Trichomonas vaginalis.

Self-care and Health Behavior Changes

    • Safe Sexual Practices:
      • During this recovery period, it's crucial to avoid having sex to prevent spreading the infection.
      • After recovery, practicing safe sex, including consistent condom use, can help prevent the transmission of NGU and other sexually transmitted infections.

Remember that early detection and treatment are key in managing NGU effectively and preventing complications. It's important to note that NGU can have different causes, including bacterial and non-bacterial infections. The specific treatment approach may vary depending on the underlying cause identified through diagnostic testing.

Progression or Complications

The natural progression of NGU can vary from person to person. In some cases, the symptoms may resolve on their own without treatment. However, if left untreated, NGU can lead to complications. These complications can include:

  • Prostatitis: Inflammation of the prostate gland.
  • Epididymitis: Inflammation of the epididymis, which is a tube located at the back of the testicles.
  • Reactive and purulent arthritis: Inflammation of the joints.
  • Pelvic inflammatory disease: Infection and inflammation of the female reproductive organs, which can lead to infertility.

It's important to note that not all cases of NGU will progress to these complications. The likelihood and severity of complications can vary depending on factors such as the specific organism causing NGU and individual health factors.

Treating NGU promptly can help prevent complications and reduce the risk of transmission to sexual partners. If you have any concerns about NGU or its treatment, it's best to consult with your healthcare provider who can provide personalized advice based on your specific situation.