Since Dr. Kolon's issue on this topic published in 2004, there have been many updates in the diagnosis and treatment of urologic diseases in the pediatric population. This issue provides updates in the following areas: management of complex pediatric disorders, disorders of sex development, treatment and management of urinary tract infections, and management of pediatric stone disease. Emphasis is also given to laparoscopic and robotic approach to genitourinary anomalies in children, radiologic imaging in the genitourinary tract, and pediatric urologic oncology.