Persons with Intellectual Development Disabilities (IDD) are aging at a rapid rate. Adults with intellectual disabilities have intellectual functional limitations that occur prior to the age of 18 years. Adults with developmental disabilities have functional limitations in 3 or more areas of life activity (self-care, language, mobility, self-direction, capacity for independent living). Constipation is a major medical conditions that commonly is seen among persons with IDD and may lead to serious complications. Learn more about this condition.