１２６例咯血患者，胸部Ｘ线检查（包括胸部正侧位片、断层、胸部ＣＴ）正常及痰液检查（包括查瘤细胞、细菌学检查）阴性，经纤维支气管镜检查结果：炎症５２例（４１．２７％）、支气管肺癌３９例（３０．９５％）、结核１１例（８．７３％）及其它２４例（１９．０４％）。纤维支气管镜检查对临床常规检查（胸部Ｘ线检查、痰检）未见异常的咯血患者，绝大多数能及时做出病因诊断，特别对支气管肺癌早期发现有着极其重要的临床价值 126 cases of hemoptysis, chest X-ray examination (including chest lateral radiographs, tomography, chest CT) and sputum examination (including tumor cells, bacteriological examination) negative, bronchoscopy results: inflammation in 52 cases ( 41.27%), bronchial lung cancer in 39 cases (30.95%), tuberculosis in 11 cases (8.73%) and other 24 cases (19.04%). Fiberoptic bronchoscopy routine clinical examination (chest X-ray examination, sputum examination) no abnormal hemoptysis patients, the vast majority can make a timely diagnosis of etiology, especially for early detection of bronchogenic carcinoma has an extremely important clinical value