The epididymis is a coiled tube that stores sperm and connects to the vas deferens. Epididymitis is when this part of the body becomes infected and inflamed. Either a sexually transmitted disease (STD) or a bacterial infection causes this condition. In some cases, an enlarged prostate gland or an injury to the groin can cause inflammation of the testicle, too. Although males can experience epididymitis at any age, it is more common between 14 and 35 years of age. Keep reading to learn more about the symptoms of epididymitis and possible treatment options. If you experience any of these signs of epididymitis, contact your medical provider immediately.