What is the definition of orchitis
Orchitis is the inflammation of the testicles. It can be caused by either bacterial or viral infection. Both testicles may be affected by orchitis at the same time. However, symptoms are restricted to just one testicle in most men.he most common cause of orchitis is the mumps. Mumps is a viral childhood disease that is rare in the United States due to effective immunization programs. The Mayo Clinic estimates that 33 percent of men who contract mumps as a teen also develop orchitis (Mayo Clinic).