Testicle/ epididymis. Epididymo – orchitis is inflammation of the testicle & epididymis.
Epididymo-orchitis. Epididymo-orchitis is usually caused by a bacterial infection. Infection can result from surgery, the insertion of a catheter into the bladder, or the spread of infections from elsewhere in the urinary tract. Sometimes, particularly in young men, the cause is a std. Symptoms include swelling and tenderness of the affected area, pain that may become constant and severe, hydrocele or abscess.