Encopresis is involuntary "fecal soiling" in children who have usually already been toilet trained. Children with encopresis often leak stool into their underwear.

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Encopresis - University Hospital School provides a definition of what encopresis is, what causes it, how parents can determine if their child is encopretic and developing a treatment program.
Primary Nonretentive Encopresis and Stool Toileting Refusal - Treatment guidelines provided by the American Academy of Family Physicians. Defines encopresis, the causes and how to develop appropriate treatment programs.