Orchitis: Overview Orchitis (or-KIE-tis) refers to

Overview Orchitis (or-KIE-tis) refers to infection or swelling and irritation, called inflammation, of one or both testicles. Infections are common causes of orchitis . These include sexually transmitted infections (STIs) and infection with the mumps virus. Orchitis often is linked with an infection of the epididymis, which is the coiled tube at the back of the testicle that stores and carries sperm. The infection of the epididymis is called epididymitis. With orchitis , the condition is ... Testicular orchitis consists of an inflammatory process of the male gonad due to trauma to the testicles or a bacterial or viral infection. This alteration can cause male sterility and, therefore, must be treated. Orchitis is an inflammation of one or both testicles, usually caused by a viral or bacterial infection. Learn about the causes, symptoms, diagnosis, treatment, and prevention of orchitis , and when to seek medical care. Learn more from WebMD about the causes, symptoms, and treatment of orchitis , inflammation of one or both testicles that is usually caused by an infection.