Gastroesophageal refluxi is prevalent in young children with Kabuki Syndrome, hindering the child's health, apetite and growth. Undiagnosed diarrhea and/or constipation is commonly reported. It is suspected that hypotonia may be a contributing factor. Although less common, structural and functional abnormalities of the abdominal organs can be serious. These may include diaphragm hernias or eventrationi, malrotation of the intestines, and abnormalities with the anus or rectum in the form of anal atresiai, anovestibular fistulai or anteriorly placed anus.