Definition of Epididymitis
Epididymitis is an inflammation of the epididymis, a duct located at the back of the testicle that stores and transports sperm. It often causes testicular pain, swelling, increased sensitivity, and may be accompanied by fever. Bacterial infections, particularly sexually transmitted infections such as chlamydia and gonorrhea, are common causes of epididymitis.
Epidemiology
In Switzerland, epididymitis mainly affects young men, often linked to sexually transmitted infections (STIs) like chlamydia and gonorrhea. It is also common in older men due to urinary tract infections. About 1% of Swiss men consult for epididymitis, with a stable incidence in recent years.
Globally, epididymitis remains a common male condition, especially in countries where STIs are widespread. Young sexually active men are the most affected, but urinary infections as they age are also a cause. Incidence rates vary depending on public health practices, access to care, and the prevalence of STIs, which influence epididymitis rates.
Causes of Epididymitis
The main causes of epididymitis include:
- Sexually transmitted infections (STIs): chlamydia and gonorrhea are common causes in young, sexually active men.
- Urinary tract infections: more common in older men, they can cause inflammation of the epididymis.
- Medical interventions: procedures such as urinary catheterization or surgical interventions increase the risk of epididymis infection.
- Prostatitis: an infection of the prostate can spread to the epididymis and cause inflammation.
- Tuberculosis: in regions where it is common, tuberculosis can infect the epididymis.
- Trauma or intense exercise: injuries or intense physical activity can lead to inflammation of the epididymis, although this is rarer.
Risk Factors
The main risk factors for epididymitis include:
- Unprotected sexual activity: increases the risk of sexually transmitted infections, such as chlamydia and gonorrhea.
- History of urinary tract infections: men with frequent urinary infections are at higher risk of developing epididymitis.
- Use of urinary catheters: catheterization can introduce bacteria and cause infections in the urinary system.
- Recent medical interventions: urological or surgical procedures increase the risk of secondary infections.
- Prostate problems: men with prostatitis or other prostate conditions are more likely to develop epididymitis.
- Weakened immune system: reduced immunity makes one more vulnerable to bacterial infections, including those affecting the epididymis.
Symptoms of Epididymitis
Symptoms of epididymitis include:
- Testicular pain: localized pain, often intense, in the affected testicle, which may gradually worsen.
- Scrotal swelling: inflammation leads to swelling around the affected testicle.
- Redness and warmth: the scrotum may become red and warm to the touch, a sign of inflammation.
- Painful urination: pain or burning may occur during urination, especially if epididymitis is caused by a urinary infection.
- Urethral discharge: discharge from the penis may occur, particularly in cases of sexually transmitted infection.
- Fever and chills: a more advanced infection may lead to fever and chills.
- Pain during ejaculation: discomfort or pain may occur during sexual intercourse or ejaculation.
These symptoms require medical evaluation to confirm epididymitis and determine appropriate treatment.
Radiological Imaging
Radiological imaging of epididymitis includes:
- Color Doppler ultrasound: It is the first-line examination. It shows an enlarged, hypoechoic, and hypervascularized epididymis, indicating active inflammation. Doppler assesses increased blood flow in the affected area.
- Scrotal ultrasound: It allows detailed visualization of scrotal structures. It can reveal thickening of the scrotal skin and fluid around the testicle in severe cases. This examination also helps exclude other causes of scrotal pain, such as testicular torsion.
- Scrotal MRI: Reserved for complex cases, MRI provides high-precision images of soft tissues. It is useful for assessing the extent of inflammation or excluding other diagnoses such as a testicular tumor or scrotal abscess.
Prevention of Epididymitis
To prevent epididymitis, here are some recommendations:
- Use condoms: Reduces the risk of sexually transmitted infections (STIs) such as chlamydia and gonorrhea, common causes of epididymitis.
- Treat urinary infections promptly: Urinary infections can spread to the epididymis. Treating them quickly reduces this risk.
- Maintain good personal hygiene: Reduces the risk of contamination by bacteria that can lead to infection.
- Avoid scrotal trauma: Injuries to the scrotum increase the risk of epididymis inflammation.
- Consult for prostate symptoms: In case of urinary problems or prostate enlargement, medical follow-up helps prevent the spread of infections.
These measures help reduce the risk of epididymal infection and inflammation.
Conclusion
Epididymitis is often a painful inflammation of the epididymis, usually caused by an infection. Diagnosis is based on clinical examination and radiological imaging, primarily ultrasound. Prevention relies on good hygiene, prompt treatment of infections, and the use of condoms to reduce STI risks. Prompt management helps limit complications and ensures faster recovery.
Finally, if you have symptoms or concerns, consulting a general practitioner allows for an accurate diagnosis and appropriate advice.
Source: UpToDate