目的:探讨预警性护理对乳腺癌患者化疗后静脉血栓发生率的预防效果。方法:选取2018年1—12月郑州大学第一附属医院收治的103例乳腺癌行常规护理患者为常规组，选取2019年1—12月郑州大学第一附属医院收治的103例乳腺癌行预警性护理患者为预警组。比较两组患者化疗后1个月的静脉血栓发生率。采用彩色多普勒超声检测化疗前、化疗1个月后患者的腋下血液流速。结果:预警组化疗后静脉血栓发生率低于常规组，差异有统计学意义（n P<0.05）。预警组化疗后患者的腋下最大血液流速、平均血液流速均高于常规组，差异有统计学意义（n P<0.05）。n 结论:预警性护理对降低乳腺癌患者化疗后静脉血栓发生率有积极作用，可以改善患者血凝状态。“,”Objective:To explore the effects of early warning nursing on preventing the incidence of venous thrombosis in patients with breast cancer after chemotherapy.Methods:Totally 103 patients with breast cancer admitted at the First Affiliated Hospital of Zhengzhou University from January to December 2018 who received routine nursing were included into the routine group, and 103 patients with breast cancer admitted at the First Affiliated Hospital of Zhengzhou University from January to December 2019 who underwent early warning nursing were included into the early warning group. The incidence of venous thrombosis 1 month after chemotherapy was compared between the two groups. Color Doppler ultrasonography was used to detect axillary blood flow before and 1 month after chemotherapy.Results:The incidence of venous thrombosis in the early warning group after chemotherapy was lower than that in the routine group, and the difference was statistically significant (n P<0.05) . The maximum blood flow rate and average blood flow rate in the armpit after chemotherapy in the early warning group were higher than those in the routine group, with statistically significant difference (n P<0.05) .n Conclusions:Early warning nursing has a positive effect on the incidence of venous thrombosis in patients with breast cancer after chemotherapy, which can improve their hemagglutination.