![]() But if the blockage present in both the sides, then it produces significant breathing and feeding difficulty in the newborn infant. The narrowing or complete blockage of the one sided nasal canal can be imperceptible after a few years of birth or it provides chronic bulky discharge from one side of the nose. Choanal atresia can develop at single or both the sides of the nasal cavity, but more frequent in right side. During fetus develops in the womb, due to incomplete canalization at the inferior aspect of the palate, which is sited between the nose and the oral cavity is caused the development of the Choanal atresia. The blockade of the inner nasal passage opening leads to obstruction of the nasal passage with the rest of the respiratory canal is called Choanal atresia.
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