多发性骨髓瘤系造血系统恶性肿瘤,近年来有增多趋势,由于本病临床表现多样化,易与其它疾病混淆而造成漏诊、误诊及诊断曲折。为了提高对本病的认识,减少误诊,现将本刊收到8篇文章,其中曾误诊为其它疾病的19例分析如下: 一、因尿改变误诊为尿路感染、肾盂肾炎、急性 Multiple myeloma is a malignant tumor of the hematopoietic system. In recent years, there has been an increasing trend. Due to the diversification of clinical manifestations of this disease, it is easy to be confused with other diseases and cause misdiagnosis, misdiagnosis and diagnosis. In order to raise awareness of this disease and reduce misdiagnosis, we have received 8 articles in this journal. Among them, 19 cases that were misdiagnosed as other diseases were analyzed as follows: 1. Misdiagnosis of urinary tract infection, pyelonephritis, and acute urinary changes.