<prompt> Most common cause of stridor in children is:LaryngomalaciaCongenital laryngeal paralysisForeign body in larynxCongenital laryngeal tumours  <response>: Laryngomalacia 272-DLaryngomalacia - congenital laryngeal stridor It is the most common condition causing an inspiratory stridor at or shortly after birth. It may persist throughout infancy disappears by 2 years of age Stridor increased on crying but subsides on placing the child in prone position, cry is normal. Foreign bodies in the larynx are uncommon because they are either coughed out or causes fatal obstruction within a few minutes. If helps is not to hand. 