what is pica syndrome
Practice Essentials. Pica is an eating disorder typically defined as the persistent ingestion of nonnutritive substances for at least 1 month at an age for which this behavior is developmentally inappropriate.It may be benign or may have life-threatening consequences.ica is typically defined as persistent ingestion of nonnutritive substances for at least 1 month at an age for which this behavior is developmentally inappropriate. The definition is occasionally broadened to include the mouthing of nonnutritive substances.