Patients: twenty-four patients with dysfunctional menorrhagia that met the inclusion criteria.Intervention: Endometrial thermal ablation using the THERMACHOICE thermal balloon system. Measurement of Success:Treatment success was defined as elimination of menstruation (amenorrhea), or a significant reduction of flow to normal menstruation (cumcnorrhea) or less than normal menstruation (hypomcnorrhoea). Failed clinical outcome was defined as persistent menorrhagia. Results:No intraoperative complications occurred and postoperative morbidity was minimal. At 12 months follow-up period, amenorrhea was achieved in 6 patients (25,-*), Hypomenorrhea was achieved in 15 patients (62.5%) and Eurnenorrhca was achieved in 2 patients (8.3'J()). Only one patient experienced a failed clinical outcome. The overallComparison between pre and postoperative menstrual now was highly significant.Conclusion : Thermal balloon endometrial ablation is a safe, effective and easy technique in treatment of dysfunctional menorrhagia.