Objective: dysfunctional uterine bleeding is a common gynecological condition which affects about 20-30% of premenopausal women. When medical treatments fail to provide adequate relief, surgical interventions, including hysterectomy or destruction of the endometrium, might be considered. The aim of the present study was to determine the menstrual outcomes and the satisfaction level, after thermal balloon endometrial ablation to treat this condition among Iranian patients. Design classification: A single-arm prospective study. Setting: University teaching hospital. patients:52 patients with dysfunctional uterine bleeding. Intervention: Patients underwent endometrial ablation using Cavaterm plus and were fallowed up for 12 months, Post operatively. Measurements: The pictorial blood loss assessment chart score of menstrual cycle, number of days in the cycle, degree of dysmenorrhea, satisfaction from treatment and any complication of treatment were assessed. Main results: Eighty-eight percent of patients responded to treatment; the mean number of days of bleeding per month decreased from a mean of 13.6 to 4days (p<0.001) and the mean amount of bleeding decreased from 535.4 to 38.6 in pictorial blood loss assessment chart (p<0/001). Also 45% of patients became amenorrheic after one year fallow up and 88% were satisfied with their treatment. Conclusions: Thermal balloon endometrial ablation among our patients showed a similar outcome to previous reported studies. It seems that this method represents an excellent alternative to hysterectomy, with high rate of success, a very low complications rate and high patients satisfaction.