The main<unk> s agents are Enterobacteriaceae (such as Escherichia coli and Klebsiella), Neisseria gonorrhoeae, and Chlamydia trachomatis. One study has shown that men with<unk>  who have lower serum levels of total testosterone tend to have a more complicated form of<unk> , such as involving more than one site, than those with normal levels.
Male accessory gland infection
Autoimmune oophoritis
Testicular sarcoidosis
Male genital disease
Testicular trauma
Pituitary disease
Ejaculatory duct obstruction
Testicular microlithiasis