Surgery is the mainstay treatment for endometrial cancer and complex atypical endometrial hyperplasia. These conditions are more common in the obese women and as such these patients pose additional risks and challenges to surgery. Laparoscopic hysterectomy (LH) is preferred over open surgery in obese patients as it reduces surgical morbidity. However, more recently, robotic-assisted hysterectomy (RH) has been used in morbidly obese patients to overcome the limitations of conventional laparoscopy. To compare the surgical outcomes of morbidly obese patients undergoing LH or RH for endometrial cancer or complex atypical hyperplasia. A retrospective analysis of morbidly obese patients (BMI > 40 kg/m