Font Size
A
A
A

Testicle Infection (Epididymitis) (cont.)

What Causes Epididymitis?

The cause of epididymitis is usually a bacterial infection. The bacteria usually get to the epididymis by moving back through (retrograde) the urethra, prostate, vas deferens into the epididymis. The responsible bacteria are usually identified in about 80% of cases.

Two main groups of organisms cause most cases of epididymitis: sexually transmitted organisms and coliforms (organisms that commonly live in the intestines).

  • In men younger than about 39 years of age, the causes are usually the same organisms that cause the sexually transmitted diseases of chlamydia (responsible for nearly 50%-60% of cases) and gonorrhea. The bacterial species are Chlamydia trachomatis and Neisseria gonorrhea, respectively.
  • In those older than 39 years of age, the causes are usually coliforms, which are bacteria (such as Escherichia coli) that live in the intestines. These organisms also frequently cause bladder infections. Any age of men who participate in anal intercourse are more likely to get infected with E. coli or other fecal bacteria. Epididymitis is rarely caused by fungi or Mycobacterium spp.
  • Chemical epididymitis (rare) is inflammation caused by the retrograde (backward) flow of urine when exercising or having sex with a full bladder.
  • Amiodarone (Nexterone), a frequently used heart medication, occasionally causes inflammation of the epididymis.
  • Viral infections (including mumps), mainly in the pediatric population.
Medically Reviewed by a Doctor on 9/15/2017

Must Read Articles Related to Testicle Infection (Epididymitis)

Antibiotics (Side Effects, List, Types)
Antibiotics Antibiotics are prescribed to individuals to cure disease by killing bacteria. There are over 100 antibiotics. The main classes of antibiotics include
    ...
learn more >>
Blood in the Urine
Blood in the Urine (Hematuria) Blood in the urine (hematuria) can be associated with many conditions, some of which can be dangerous. Causes of blood in the urine include
learn more >>
Testicular Cancer
Cancer of the Testicle Testicular cancer is a cancer/...learn more >>

Patient Comments & Reviews

The eMedicineHealth doctors ask about Epididymitis (Testicle Infection Symptoms, Causes, and Treatment):

Testicle Infection (Epididymitis) - Symptoms

What were the symptoms of your testicle infection and how was it treated?

Testicle Infection (Epididymitis) - Treatments

What was the treatment for your testicle infection (epididymitis)?

Epididymitis - Experience

Have you had testicle infection? Please describe your experience.


Read What Your Physician is Reading on Medscape

Testicular Trauma »

Institute conservative treatment for patients with minor trauma in which the testes are unequivocally spared and the scrotum has not been violated.

Read More on Medscape Reference »


Medical Dictionary