Epididymitis
(Epididymo-orchitis)
Definition
| The Epididymis |
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| Copyright © Nucleus Medical Media, Inc. |
Causes
- Urinary tract infection
- Sexually transmitted diseases (STDs), such as chlamydia and gonorrhea
- Infection of the urethra (urethritis)
- Infection of the prostate (prostatitis)
- Tuberculosis
- Injury
- Viral infections, such as mumps
- Genital abnormalities
- Treatment with amiodarone (Cordarone), a heart rhythm drug
- Chemotherapy to treat bladder cancer
Risk Factors
- Age: 15-30 (sexually transmitted bacteria is a common cause)
- Age: over 60 (urinary tract infections are a more frequent cause)
- Infection of the genitourinary tract (urethra, bladder, kidney, prostate, or testicle)
- Narrowing of the urethra
- Use of a urethral catheter
- Infrequent emptying of the bladder
- Recent surgery or instrumentation of the genitourinary tract (especially prostate removal)
- Birth defects of the genitourinary tract
- Unprotected sex
- Disease that affects the immune system
Symptoms
- Pain in the testicles
- Sudden redness or swelling of the scrotum
- Hardness, a lump, and/or soreness in the affected testicle
- Tenderness in the nonaffected testicle
- Groin pain
- Chills
- Fever
- Inflammation of the urethra
- Pain during intercourse or ejaculation
- Pain and/or burning during urination
- Increased pain while having a bowel movement
- Lower abdominal discomfort
- Discharge from the penis
Diagnosis
- Urinalysis—to check for high white blood cell (WBC) count and the presence of bacteria
- Urine culture—to identify the type of bacteria present
- Culture or other test of discharge from penis
- Blood test—to measure the WBC count
- Ultrasound—a test that uses sound waves to examine the scrotum
Treatment
- Bed rest—This keeps the testicles from moving and promotes healing. You may need bed rest until the swelling goes away.
- Antibiotics—You will be given antibiotics to treat a bacterial infection. Many cases of epididymitis are caused by sexually transmitted bacteria. Chlamydia is one of the most common. If you have an STD, your partner(s) will also need treatment. Take all of your antibiotics, even if you begin to feel better.
- Oral anti-inflammatory medication—This includes drugs like ibuprofen, to help reduce swelling.
- Scrotal elevation and support—You may need to wear an athletic supporter for several weeks.
- Hot baths—Taking baths can ease the pain and help relieve swelling.
- Surgery—May be needed in severe cases that keep coming back.
Prevention
- Practice safe sex. Protect yourself from STDs by using condoms.
- Empty your bladder as soon as you feel the need.
RESOURCES
National Kidney Foundation http://www.kidney.org
Urology Care Foundation http://www.urologyhealth.org
CANADIAN RESOURCES
Canadian Health Network http://www.canadian-health-network.ca
The Kidney Foundation of Canada http://www.kidney.ca
References
Centers for Disease Control and Prevention. Sexually Transmitted Diseases Treatment Guidelines, 2010. MMWR. 2010;59(No. RR-12):1-110.
Centers for Disease Control and Prevention. Sexually transmitted diseases treatment guidelines 2006: epididymitis. Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/std/treatment/2006/epididymitis.htm. Updated April 12, 2007. Accessed July 15, 2010.
Centers for Disease Control and Prevention. Sexually transmitted diseases treatment guide: 2006. MMWR. 2006;55. Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/std/treatment/2006/rr5511.pdf. Accessed February 5, 2008.
Hori S, Sengupta A, et al. Long-term outcome of epididymectomy for the management of chronic epididymal pain. J Urol. 2009 Oct;182(4):1407-1412.
The Merck Manual of Diagnosis & Therapy. 17th ed. Rahway, NJ: Merck & Co; 1999.
Santillanes G, Gausche-Hill M, et al. Are antibiotics necessary for pediatric epididymitis? Pediatr Emerg Care. 2011 Feb 19.
Revision Information
- Reviewer: Adrienne Carmack, MD
- Review Date: 09/2012 -
- Update Date: 00/91/2012 -

