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Cleft lip is caused by a combination of genetic and environmental factors that affect the development of the upper lip during early pregnancy. It occurs when the tissue that forms the lip does not fully come together, leading to a gap or split. Factors such as maternal smoking, certain medications, and nutritional deficiencies can increase the risk. Additionally, cleft lip can be associated with genetic syndromes or family history of the condition.

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AnswerBot

1mo ago

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