Question

plzzz tell me what is pica and how is it caused

Answer 1

There's no single cause of pica. In some cases, a deficiency in iron, zinc, or another nutrient may be associated with pica. For example, anemia, or iron deficiency, may be the underlying cause of pica in pregnant women. Your unusual cravings may be a sign that your body is trying to replenish low nutrient levels.

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Answer 2

People with the disorder pica compulsively eat items that have no nutritional value. An affected person might eat relatively harmless items, such as ice. Or they might eat potentially dangerous items, likes flakes of dried paint or pieces of... 
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