[Undescended testis: current treatment guidelines].

Background: Cryptorchidism is the most common genital malformation in male newborns. In recent years, guidelines concerning diagnosis and therapy have undergone considerable evolution with the implementation of recent knowledge in pathophysiology, diagnosis, and therapy.
Objectives: The aim of this publication is to provide an overview of the current national and international guideline recommendations concerning diagnosis and treatment of cryptorchidism. Critical points are discussed in light of current scientific literature.
Materials and Methods: The current guidelines of the European Association of Urology (EAU)/European Society for Pediatric Urology (ESPU), the American Association of Urology (AUA), the pediatric urologic task force of the Austrian Society of Urology (ÖGU), the international consultation on urological disease (ICUD) and the German Society of Urology (DGU)/German Association of Pediatric Surgery (DGKCh) have been analyzed concerning the most important aspects of treatment and diagnosis.
Results: There is broad consensus concerning most steps and decisions for the treatment of cryptorchidism. However, some aspects of diagnostic imaging, the use of hormonal therapy, and surgical access in nonpalpable testis warrant further discussion and are the fields of considerable changes.