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Definition
By Mayo Clinic staffOrchitis (or-KIE-tis) is an inflammation of one or both testicles, most commonly associated with the virus that causes mumps. At least one-third of males who contract mumps after puberty develop orchitis.
Other causes of orchitis usually are bacterial, including sexually transmitted infections (STIs), such as gonorrhea or chlamydia. Bacterial orchitis often results from epididymitis, an inflammation of the coiled tube (epididymis) at the back of the testicle that stores and carries sperm. In that case, it's called epididymo-orchitis.
Swelling and pain are the most common signs and symptoms of orchitis.
- Orchitis. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/genitourinary_disorders/penile_and_scrotal_disorders/orchitis.html#v1058924. Accessed Sept. 10, 2011.
- Trojian T. et al. Epididymitis and orchitis: An overview. American Family Physician. 2009;79:583. http://www.aafp.org/afp/20090401/583.html. Accessed Sept. 10, 2011.
- Stewart A, et al. Epididymo-orchitis. BMJ. 2011;342:1.
- Corrales-Medina VF, et al. Viral & rickettsial infections. In: McPhee SJ, et al. Current Medical Diagnosis & Treatment 2011. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/content.aspx?aID=17051. Sept. 10, 2011.
- Epididymitis and orchitis. American Urological Association. http://www.urologyhealth.org/urology/index.cfm?article=114. Accessed Sept. 10, 2011.
- Nicks BA, et al. Male genital problems. In: Tintinalli JE, et al. Tintinalli's Emergency Medicine: A Comprehensive Study Guide. 7th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/content.aspx?aID=6362635. Sept. 10, 2011.
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