Epididymitis (ep-uh-di-duh-MY-tiss) refers to swelling and inflammation of the epididymis, the coiled tube at the back of the testicle that holds and carries sperm.

More to Know

The most common cause of epididymitis is an infection, sometimes a sexually transmitted disease (STD) (also called sexually transmitted infection or STI) like chlamydia. Urinary tract abnormalities, procedures, and infections also can lead to epididymitis.

Symptoms can include swelling; pain; redness; a heavy sensation of the scrotum; fever; discharge; and pain with urination, defecation, or ejaculation.

In addition to a physical exam, the doctor might have done urine tests, blood tests, an ultrasound or other imaging study, and/or a swab of the urethra in order to diagnose epididymitis.

Keep in Mind

Epididymitis usually gets better with antibiotic treatment and rest. Treatment depends on the underlying cause of the condition, but usually involves antibiotics to treat an infection, as well as rest, elevation, and icing of the scrotum.

All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.