Urination disorders are prevalent in childhood and represent a significant medical problem in childhood. These disorders include a wide range of conditions that affect the normal functioning of the urinary system. Functional urination disorders most often occur in children who have difficulty controlling urination, with inadequate bladder emptying, incontinence, or retention of urine. In clinical practice, three groups of urination disorders are most often encountered, neurogenic bladder, functional disorders of the lower urinary system, and primary monosymptomatic nocturnal enuresis. These disorders can have different causes such as anatomical, functional, or idiopathic and neurological. Timely and accurate diagnosis is essential for successful treatment and prevention of complications such as recurrent urinary tract infections and the development of reflux nephropathy with damage to the renal parenchyma. Therefore, early and timely recognition of certain disorders based on history, clinical symptoms, and the results of non-invasive and invasive testing methods, especially urodynamic testing, is essential for successful treatment and preservation of the health of the upper urinary tract. Treatment may include pharmacological therapy, physiotherapy ("biofeedback"), surgical interventions, and lifestyle changes depending on the diagnosis. As urination disorders in children represent a significant medical problem, that can significantly affect the quality of life and health of children, their physical well-being, and emotional status, informing parents and children about the nature of the disorder, treatment options, and the importance of following therapeutic guidelines is important for easier acceptance of different diagnosis. Active participation in urodynamic tests and other diagnostic procedures ensures the accuracy of the results and the safety of patients during the procedure. The collection and detailed data analysis enable a precise and reliable diagnosis, further improving treatment quality.