Background: Pediatric patients with type 1 diabetes mellitus are known to be a challenging group for achieving recommended glycemic control. Coping with the demands of self-managing IDDM in children and adolescents can be a formidable task, requiring a healthy and balanced diet, monitoring and regular insulin injections. Most patients are non-compliant to the treatment. A number of controlled studies have examined the efficiency of psychosocial interventions for improving compliance and glycemic control among diabetic youth. None has examined the effectiveness of guided imagery in treatment of type 1 diabetes mellitus.