我们将脐血用以治疗肿瘤化疗后骨髓抑制，取得了一定疗效。现报告如下。１　临床资料１１　病例选择　选取４５例经病理或骨髓涂片证实的肿瘤住院患者男２４例，女２１例；年龄１６～６５岁。其中肺癌１６例，食管癌１０例，肝癌４例，均为手术切除后；另１５例为急性白血病? We have used umbilical cord blood to treat myelosuppression after chemotherapy and achieved a certain effect. The report is as follows. 1 Clinical data 11 Case selection A total of 45 cases of inpatients with tumor confirmed by pathology or bone marrow smear were selected from 24 males and 21 females, aged from 16 to 65 years. There were 16 cases of lung cancer, 10 cases of esophageal cancer, and 4 cases of hepatocellular carcinoma. All cases were surgically removed. The other 15 cases were acute leukemia.