The current increasing survival of children with central nervous system damage has created a major challenge for medical care. Gastrointestinal and nutritional problems in neurologically impaired children have been recognized as an integral part of their disease, often leading to growth failure and worsened quality of life for both children and caregivers. (1) Measuring rectal wall thickness to highlight the benefit of dietary intervention to constipated children having neurological impairment will be a novel point in this study.