肺炎是呼吸道感染中较为常见的疾病。从广义来说,肺炎包括一切肺部的炎性病变,其种类很多,分类方法也不一.从治疗观点出发,病因分类较为重要。各个不同类型的肺炎都可有不同程度的发热、咳嗽、咯痰等症状,有的病例可有咯血、胸痛或呼吸困难。如果肺部炎症范围较大,肺部叩诊呈浊音,触诊语颤增强, Pneumonia is a more common disease in respiratory infections. In a broad sense, pneumonia includes all the inflammatory lesions in the lungs, and many types and methods of classification are different from the treatment point of view, the classification of the cause of the disease is more important. Various types of pneumonia can have varying degrees of fever, cough, expectoration and other symptoms, and some cases may have hemoptysis, chest pain or breathing difficulties. If the scope of the larger lung inflammation, percussion lung was voiced palpation tremor increased,