Defecation disorders, and among them constipation, are one of the most common gastrointestinal problems in children. According to data from the literature, the problem affects 1% - 7.5% of the children population who come to a general pediatrician, 25% of patients in gastroenterological practice, and even 45% in a highly specialized gastroenterology centers [1, 2]. In 17% - 40% of children with constipation symptoms begin in the first year of life [1]. The most common cause of chronic constipation in children are functional disorders, in approx. 90% of cases [3]. Essential to the diagnosis is to exclude anatomical abnormalities, neurological, endocrine and metabolic reasons, which can cause constipation, and declare at least two signs contained in the Rome III Criteria: 2 or less defecation during week, retention of large amount of fecal masses in the rectum; as well large stools which may clog the toilet [4]. The aim of treatment is to regulate bowel movements and prevent recurrence of symptoms. The mainstay of treatment is to change eating habits, defecation training and farmacotherapy with laxative drugs.