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.
Sexually Transmitted Diseases (STDs) Sexually transmitted diseases (STDs) are among the most common infectious diseases in the United States. STDs can be spread through any type of sexual activity involving the sex organs, the anus or mouth, or through contact with blood during sexual activity. Examples of STDs include: