Causes of Pediatric Constipation - Differential Diagnosis Algorithm

Dietary / Functional:

 • Insufficient Volume / Bulk

Neurologic:

 • Hirschsprung's Disease

 • Imperforate Anus

 • Anal Atresia

 • Intestinal Stenosis

 • Intestinal Atresia

 • Cystic Fibrosis

Dietary/Functional:

 • Insufficient Bulk/Fluid

 • Withholding

 • Painful (e.g. Fissures)

 • Drugs (Narcotics, Psychotropics) 

Anatomic:

 • Bowel Obstruction

 • Pseudo-obstruction

Neurologic:

 • Hirschsprung's Disease

 • Spinal Cord Lesions

 • Myotonia Congenita

 • Guillain-Barré Syndrome

 • Muscular Dystrophy

 • Sexual Abuse



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