limination disorders are common, well treatable childhood disorders, associated with high levels of distress and increased rates of psychiatric and other comorbid disorders (1). Despite a spontaneous recovery rate of 15% per year, they can continue into adolescence (2, 3). Therefore, early and effective treatment is important. The prerequisite for an effective therapy is a precise, specific diagnosis of the respective elimination disorder. Two major groups can be distinguished: nocturnal enuresis and daytime urinary incontinence. About 10% of seven-year-olds wet at night, and up to 6% during the day (4). The classification systems of ICD-10 (5) and DSM-5 (6) are not up-to-date and do not allow the different subtypes of elimination disorder to be adequately differentiated (7). As a result, the new international classification system of the International Children's Continence Society (ICCS) (8) has become particularly important, as it takes into account the current state of research. The purpose of this article is to provide a current, practical review of the workup and treatment of these common disorders. For further details, please refer to current English and German textbooks (9-11). Methods This selective review is based on current literature, the recommendations of the ICCS (8), and the interdisciplinary, consensus-based German S2K-AWMF guideline on enuresis and functional (non-organic) urinary incontinence (12). Results Classification: Enuresis and urinary incontinence The ICCS distinguishes between frequent, intermittent forms of wetting, which are predominantly nonorganic, and the rare, continuous forms of incontinence, which predominantly have organic causes (e.g., structural, neurogenic, infectious, or other pediatric illnesses) (8, 12). Two main groups can be distinguished for intermittent incontinence: nocturnal enuresis, and functional daytime urinary incontinence (Table 1). Nocturnal enuresis (or simply enuresis) refers to any intermittent wetting during sleep, which includes the afternoon nap. Non-organic (functional) daytime Summary Background: Elimination disorders in childhood are common and treatable. Approximately 10% of 7-year-olds wet the bed at night, and 6% are affected by incontinence during the daytime. Two main types of disturbance are distinguished: nocturnal enuresis and functional (i.e., non-organic) daytime urinary incontinence. Each type contains a wide variety of subtypes. Effective treatment requires precise identification of the subtype of elimination disorder.