In a meta-analysis, Zhang and colleagues (2020) examined the effectiveness of bariatric surgery in obese women with UI. Searches of PubMed, the Cochrane Library, and Embase databases were performed using "weight loss surgery/bariatric surgery/gastric bypass surgery" and "incontinentia urinae/uracratia/urinary incontinence/uroclepsia" in the title/abstract before January 2018. Then, meta-analysis was analyzed by Review Manager 5.3 (Cochrane Collaboration, Oxford, United Kingdom). The SMD and OR were used to describe results of continuous variables and dichotomous variables, respectively. Pooled data showed that bariatric surgery reduced the incidence of UI in obese women at the follow-up of 6 months (OR, 3.27; 95 % CI: 2.55 to 4.21; p < 0.00001) and 12 months (OR, 4.04; 95 % CI: 2.62 to 6.22; p < 0.00001) and significantly reduced the BMI at 6 months (SMD, 1.86; 95 % CI: 1.19 to 2.53; p < 0.00001) and 12 months (SMD, 2.04; 95 % CI: 1.44 to 2.64; p < 0.00001). In addition, bariatric surgery could also significantly increase the QOL (SMD, 0.53; 95 % CI: 0.27 to 0.80; p < 0.00001) and improve the function of pelvic floor disorders (SMD, 0.55; 95 % CI: 0.38 to 0.72; p < 0.00001) based on QOL questionnaires and Pelvic Floor Distress Inventory 20, respectively. The authors concluded that this meta-analysis demonstrated that bariatric surgery is an effective choice for obese women with UI; however, more RCTs are needed to confirm these findings.