RT Book, Section A1 Sorrentino, Annalise A2 Tenenbein, Milton A2 Macias, Charles G. A2 Sharieff, Ghazala Q. A2 Yamamoto, Loren G. A2 Schafermeyer, Robert SR Print(0) ID 1155428110 T1 Male Genitourinary Problems T2 Strange and Schafermeyer's Pediatric Emergency Medicine, 5e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781259860751 LK accesspediatrics.mhmedical.com/content.aspx?aid=1155428110 RD 2024/09/10 AB Acute scrotal pain is usually caused by testicular torsion, epididymitis, or torsion of the appendix testis, and should be considered a surgical emergency until proven otherwise.Epididymitis is often caused by viral infections; however, bacterial urinary tract infections must be evaluated for in young children, and sexually transmitted disease should be considered in adolescents.Persistent scrotal swelling and a “bag-of worms” appearance indicates possible obstruction from tumor.Priapism can be divided into two mechanisms: low-flow or ischemic as in sickle cell vaso-occlusion and high-flow or engorgement, which can occur with trauma.