贫血是临床常见症状 ,其病因繁多 ,它与消化系统疾病密切相关 ,其中又以消化道肿瘤最为多见。但由于原发病临床表现不典型 ,加之贫血多为轻、中度 ,临床医生在缺铁性贫血明确诊断之后 ,未进一步常规作胃肠钡灌透视或内镜检查 ,故常常将消化道肿瘤误漏诊。本文收集 36例以贫血为 Anemia is a common clinical symptoms, its etiology, it is closely related to digestive diseases, of which the most common gastrointestinal cancer. However, due to the clinical manifestations of the primary disease is not typical, coupled with anemia and more for the mild, moderate clinicians in the diagnosis of iron deficiency anemia, no further conventional gastrointestinal barium enema or endoscopic examination, it is often the gastrointestinal cancer Misdiagnosis. This article collected 36 cases of anemia