male reproductive system AE orchitis AE NCIT: C97145 A male reproductive system AE that results in an inflammation of one or both testes due to viral or bacterial infections. Signs and symptoms include enlargement or tenderness of the affected testis, inguinal lymphadenopathy, blood in the semen, and pain during urination, intercourse, or ejaculation. WEB: http://www.nlm.nih.gov/medlineplus/ency/article/001280.htm 10031064 KM, YH