肺炎是小儿一种常见病,尤多见于婴幼儿。当你的孩子在受凉感冒数日后症状无好转且日益加重,高热持续不退,同时伴有精神萎靡、咳嗽、气喘时,你应想到你的孩子可能已经患了肺炎。婴幼儿的气管及支气管管腔比较狭窄,粘膜分泌少,纤毛运动功能差,肺组织缺乏弹性,淋巴组织及血管较丰富,易于充血,肺泡的含气量较少。所以稍有感染,就很容易充血、水肿,粘液阻塞管腔;加之小儿咳嗽无力,又不会吐痰,感染的病灶就容易向下蔓延,引起肺炎。2岁以下幼儿免疫力较差,抗病力弱,故肺炎易扩散成两肺肺炎。特别是在天气多变的秋天及冬、春季节,尤其是那些患有佝偻病、传染病及体质较弱的孩子发病率较高。 Pneumonia is a common disease in children, especially in infants and young children. When your child is feeling cold and aggravating for several days after having a cold in the cold, the fever continues unabated, accompanied by apathetic, coughing, and wheezing, you should think that your child may have had pneumonia. Infants and young children tracheal and bronchial lumen is relatively narrow, mucosal secretion less ciliary motor function, lung tissue lacks elasticity, lymphoid tissue and blood vessels more abundant, easy to congestion, less alveolar gas content. So a little infection, it is easy to congestion, edema, mucus blocking the lumen; combined with pediatric cough, and will not spit, the infected lesions spread easily downwards, causing pneumonia. Children under the age of 2 poor immunity, disease resistance is weak, so easy to spread pneumonia into two lung pneumonia. Especially in the ever-changing autumn and winter, spring, especially those suffering from rickets, infectious diseases and constitutional weak children with a higher incidence.