The probable causes of hyperglycaemia in this case were a counter-regulatory response to stress, gastroschisis and immature organ function.Other causes of neonatal hyperglycaemia could be the combination of a decreased amount of insulin production, inadequate insulin response to perinatal stress, drugs (steroid, Beta-2 agonist, phenytoin, theophylline), genetic and the amount of glucose infusion [1, 2, 6, 8]. The gene discussed is INS; the disease is Hyperglycemia.