正常小儿呼吸应是平稳无声的。喉鸣是指吸气时喉头发出的哨音声响 ,属于喉或全身某些疾病引起的一个症状。常见的原因有 :先天性喉软骨软症又称为先天性喉喘鸣 ,是临床上引起喉鸣最常见的原因。该病虽冠以先天性 ,但发生喉鸣多在生后１０余天 ,病儿就诊大多在生后半月至半岁之 Normal child breathing should be steady and silent. Throat ringing refers to the whistle sound emitted by the throat when inhaling, which is caused by some diseases of the throat or the whole body. Common causes are: Congenital laryngopharyngeal soft, also known as congenital laryngeal wheeze, is the most common cause of clinical throat. Although the disease was congenital, but more than 10 days after the occurrence of the throat, the majority of sick children in the postpartum half a month to six months old