Background There is an increasing incidence of inadequate loss of weight or weight regain after sleeve gastrectomy (SG) accounting for 5–10%, with the potential recurrence of obesity-linked diseases. Aim The aim was to determine the safety and outcome of redo-SG in patients with failed SG. Patients and methods A total of 21 patients with failed SG who received redolaparoscopic SG were evaluated. Results Entire cases were accomplished laparoscopically, with a mean operative time of 96.9±10.3 min. The mean percentage excess weight loss, mean %EBL (entire body loss), and mean;Deg;BM;Deg;I were 12.4±4.1, 13.5±3.6%, and 49.5±8.0 kg/m2, respectively, at 1 month; 40.5±6.8, 43.3±7.8%, and 41.5±6.6 kg/m2, respectively, at 6 months; and 56.8±8.5, 60.3±8.9% and 36.5±4.8 kg/m2, respectively, at 12 months. At a mean follow-up of 15±2.2 months, two patients were cured of hypertension, dyslipidemia resolved in two patients, diabetes disappeared in two patients, and all patients were cured of joint problems. Conclusion In a short period of follow-up, redolaparoscopic SG after failed SG is a feasible option and has good results regarding weight loss and comorbidity improvement.