Abstract:Objective To analyze the risk factors of post-endoscopic submucosal dissection bleeding (PEB) in treatment of early gastric cancer.Methods CNKI, Wanfang, VIP, CBM, PubMed, Embase, Google Academic, Cochrane Library, Web of Science and other articles on early gastric cancer PEB were used to evaluate the quality of the obtained literatures using Newcastle-Ottawa scale (NOS).Results 5 719 subjects were included in 9 studies, with 282 (4.93%) cases of PEB. Meta results showed that male (OR^: 1.73, 95%CI: 1.26 ~ 2.37), ulcer-positive (OR^: 1.83, 95%CI: 1.04 ~ 3.22), antithrombotic drugs (OR^: 2.17, 95%CI: 1.65 ~ 2.86), operation time (MD: 12.48, 95%CI: 1.72 ~ 23.23), size of resection lesion (MD: 5.30, 95%CI: 3.32 ~ 7.29) and infiltration depth (OR^: 1.53, 95%CI: 1.04 ~ 2.26) were statistically significant, which were risk factors for the occurrence of early gastric cancer PEB.Conclusion Male, positive intraoperative ulcer, antithrombotic drugs, operation time, resection size of lesion and infiltration depth were independent risk factors for early gastric cancer PEB, especially for patients treated with antithrombotic drugs, enough attention should be paid.