Pathogenetic Considerations of Pica in Lead Poisoning

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Abstract
An important factor associated with lead poisoning in children is the habit of eating non-food substances, a condition termed pica. In search for underlying mechanisms involved in the pathogenesis of pica, this investigation presents evidence in support of the hypothesis that in many families failure of normal mother-child interaction, paternal deprivation, culturally dependent maternal oral interests and significant stress factors in the home where abundant lead-containing material is available are etiologically related to the development of pica in lead poisoning. Other factors, which have been thought to be associated with pica, are nutritional deficiencies and maladaptive behavior patterns. A multifocal treatment approach is considered to be most effective.