This study was aimed to determine the risk factors of endoscopic variceal ligation-(EVL) induced ulcer bleeding.The prevalence of EVL-induced ulcer bleeding is reported to be 3.6%. However, there are only limited reports of this serious complication, and the risk factors and the treatment methods are not well established.A total of 430 patients who had undergone EVL in Chonnam National University Hospital from January 2014 to October 2016 were studied. EVL was performed for prophylaxis or acute hemorrhage. The patients were classified into 2 groups: a bleeding group (n = 33) and a non-bleeding group (n = 397). The patients who had endoscopically confirmed EVL-induced ulcer bleeding were included in the bleeding group.EVL-induced ulcer bleeding occurred in 7.7% (n = 33) of the patients. In a multivariate analysis, model for end-stage liver disease (MELD) score >10 (odds ratio [OR]: 3.42, 95% confidence interval [CI]: 1.10-10.64), concomitant GV F3 (OR: 14.1, 95% CI: 2.84-71.43), and detachment of o-ring bands on follow-up endoscopy (OR: 8.06, 95% CI: 2.55-25.64) were independent predictive factors of EVL-induced ulcer bleeding. Various endoscopic modalities were attempted for hemostasis (EVL in 8 cases [24.2%], endoscopic variceal obturation [EVO] with cyanoacrylate in 6 cases [18.2%], argon plasma coagulation [APC] in 1 case (3%), Sengstaken-Blakemore (SB) tube in 3 cases [9.1%]), and proton pump inhibitor therapy only in 15 cases (45.5%).MELD score >10, concomitant GV F3, and detachment of o-ring bands on follow-up endoscopy are risk factors for EVL-induced ulcer bleeding.