Editing Infections: Orchitis, & Epididymitis (section)

===Pathogenesis===
*'''Orchitis (especially bacterial) usually occurs with epididymitis (secondary to local spread of an ipsilateral epididymitis) and are referred to as epididymo-orchitis.'''
**'''In boys and elderly men, UTIs ('''including E. coli and Pseudomonas''') are usually the underlying source.'''
**'''In young sexually active men, sexually transmitted diseases are often responsible'''
**'''Isolated orchitis without epididymitis is a relatively rare condition and is usually viral in origin, which spreads to the testis by a hematogenous route)'''
**Mycobacterial infections, tuberculosis, and BCG therapy can also cause orchitis
*'''The process is usually unilateral; however, sometimes bilateral, especially if viral'''