Epidemiology
Epididymitis makes up 1 in 144 outpatient visits (0.69 percent) in men 18 to 50 years old or 600,000 cases in men between 18 to 35 in the United States.
It occurs primarily in those 16 to 30 years of age and 51 to 70 years. As of 2008 there appears to be an increase in incidences in the United States that parallels an increase in reported cases of chlamydia and gonorrhea.
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