In the first study of its kind in the US, researchers found that normally developing preschool children with chronic constipation have underlying sensory issues that contribute to their difficulties with toileting behaviors. These children are often picky eaters who might be overly sensitive to food textures, tastes, or odors. They also might have an exaggerated response to noises, bright lights, or other sensory stimuli. These findings are published April 18, 2019 in the Journal of Pediatrics.