Inflammation of the Testicle (Orchitis) Topic Guide
Inflammation of the Testicle (Orchitis): Orchitis is inflammation of one or both testicles in men, usually caused by an infection. Examples of causes of orchitis include a viral infection such as mumps, mononucleosis, coxsackievirus, E. coli, and STDs. Symptoms of orchitis include testicular swelling, redness, and pain; fever; nausea; fatigue; headache; body aches; and pain during urination. Treatment of orchitis depends upon the cause.
E. coli (Escherichia coli 0157:H7, E. coli 0157:H7) Infections Escherichia coli 0157:H7 (E. coli 0157:H7) infections are caused by bacterial. E. coli 0157:H7 is one of the most virulent strains and is passed from person to person via contaminated food and water with infected feces. Symptoms include nausea, vomiting, bloody diarrhea, fever, and abdominal pain. Complications can occur in the elderly and in children younger than 6 years of age.