[Functional gastrointestinal disorders in neonate and toddler. The Rome IV criteria].

Functional disorders of the gastrointestinal tract in infants and children are very frequent. To the most common belong: infant colic, regurgitation and functional constipation. In the year 2016 modified IV Rome criteria of functional gastrointestinal disorders were published. In the current work the authors discuss diagnostic criteria and therapy in regurgitation, rumination syndrome in infants, cyclic vomiting syndrome, infant colic, infant dyschezia and functional constipation in children younger than four years.