DefinitionThe testes are two egg-shaped male reproductive organs located in the scrotum. They produce sperm and the male hormone, testosterone.Related topics:Testicular torsionUndescended testicleUndescended testicle repairAlternative NamesTesticles; Gonads - maleReferencesElder JS. Disorders and anomalies of the scrotal contents. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 545.Brooks JD. Anatomy of the lower urinary tract and male genitalia. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 2.