Definition: Nasoprognathism is a condition in which the nasal passages of the human nose are not properly functioning. It can be caused by various factors such as infection, inflammation, or other conditions that affect the nasal passages. Nasal obstruction, also known as naso-pharyngeal obstruction (NPO), occurs when the nasal passage becomes blocked, leading to symptoms such as difficulty breathing, pain in the nose, and a sensation of being blocked. Other causes of Nasal Ob