What are the signs and symptoms of epididymitis (inflammation of the epididymis)?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: April 8, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

From the Guidelines

Epididymitis typically presents with unilateral testicular pain and tenderness, hydrocele, and palpable swelling of the epididymis. The signs and symptoms of epididymitis can vary, but common symptoms include:

  • Unilateral testicular pain that may radiate to the lower abdomen
  • Scrotal swelling and redness
  • Tenderness to touch
  • A palpable swollen epididymis
  • Fever
  • Chills
  • Urinary symptoms (frequency, urgency, dysuria)
  • Urethral discharge
  • Blood in the semen As noted in the 1998 guidelines for treatment of sexually transmitted diseases by the Centers for Disease Control and Prevention 1, men who have epididymitis typically have these symptoms, and it is essential to consider testicular torsion, a surgical emergency, in all cases. The evaluation of men for epididymitis should include procedures to rule out other conditions, such as urethritis or urinary tract infection, and to assess for potential complications. Prompt medical attention is crucial to prevent complications, including abscess formation, reduced fertility, or spread of infection to the testicle (epididymo-orchitis), as empiric therapy can result in microbiologic cure of infection, improvement of signs and symptoms, prevention of transmission to others, and a decrease in potential complications 1.

From the FDA Drug Label

Acute epididymo-orchitis caused by N. gonorrhoeae: 100 mg, by mouth, twice a day for at least 10 days. Acute epididymo-orchitis caused by C. trachomatis: 100 mg, by mouth, twice a day for at least 10 days The signs and symptoms of epididymitis are not explicitly stated in the drug label, but it can be inferred that epididymo-orchitis is a condition related to epididymitis.

  • The treatment for acute epididymo-orchitis is provided, but the label does not describe the specific signs and symptoms of the condition 2.

From the Research

Signs and Symptoms of Epididymitis

The signs and symptoms of epididymitis include:

  • Gradual onset of posterior scrotal pain 3
  • Urinary symptoms such as dysuria and urinary frequency 3
  • A swollen and tender epididymis with the testis in an anatomically normal position 3
  • The pain may be accompanied by other symptoms such as fever, chills, and discharge from the penis 4, 5

Common Causes of Epididymitis

The common causes of epididymitis include:

  • Sexually transmitted infections such as Chlamydia trachomatis and Neisseria gonorrhoeae in sexually active males aged 14-35 years 3, 4, 5
  • Enteric bacteria in men who practice insertive anal intercourse 3
  • Enteric bacteria transported by reflux of urine into the ejaculatory ducts secondary to bladder outlet obstruction in men older than 35 years 3
  • Reflux of urine into the ejaculatory ducts in children younger than 14 years 3

Importance of Recognition and Treatment

Recognition and treatment of epididymitis are vital to reduce patient morbidity, as untreated acute epididymitis can lead to:

  • Infertility 3
  • Chronic scrotal pain 3
  • Increased risk of transmission of human immunodeficiency virus (HIV) 5, 6

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.