小儿急性喉炎,多见于5岁以下儿童。因小儿喉腔狭小,声门下区粘膜下淋巴管丰富,组织疏松,小儿抵抗力较低,故易发生喉炎;且易显著水肿或肿胀,造成喉梗阻。小儿喉软骨柔软,在喉梗阻吸气时,胸腔负压增大,喉软骨内陷,使喉腔更加缩小,加重喉梗阻。 Acute laryngitis in children, more common in children under 5 years of age. Due to pediatric small larynx, subglottic submucosal lymphatic vessels rich, loose tissue, children with lower resistance, it is prone to laryngitis; and significant edema or swelling, resulting in laryngeal obstruction. Pediatric laryngeal cartilage soft, suction in the laryngeal obstruction, the chest increased negative pressure, laryngeal cartilage retraction, so that the throat more narrowing, increased throat obstruction.