Uterine Balloon Treatment for Heavy Period Bleeding.

Inclusion Criteria: Female at least 30 years of age who is premenopausal and for whom childbearing is complete. Excessive menstrual bleeding documented by a diary score of at least 150. Have documented 3 months failed medical therapy or either a) contraindicated for or b) refused medical therapy. Have an anatomically normal uterine cavity sounding at least 4cm, but not greater than 12cm. Have a normal pap smear and no unexplained abnormal pap smears within 1 year of the procedure. Agree not to switch from hormonal to non-hormonal contraception or vice versa during or just prior to the study. Agree to use reliable contraception throughout the study. Freely agree to participate in the study, including all study related procedures and evaluations, and document this agreement by signing informed consent documentation. Exclusion Criteria: Active pelvic inflammatory disease (PID) or recurrent chronic PID. Active genital or urinary tract infection at the time of the procedure. History of malignancy of the reproductive system within 5 years of the procedure or have ever had malignancy of the endometrium. Endometrial neoplasia, determined by endometrial biopsy taken within 6 months of procedure. Cavity distorting submucous myoma(s) determined by preoperative hysterogram, hysteroscopy, or transvaginal sonography within 6 months of the procedure. Previous endometrial ablation procedure. Previous uterine surgeries (such as full thickness myomectomy, subserosal myomectomy, uterine reconstruction, or any surgery in which thinning of the uterine musculature could occur) except for low transverse caesarean section. Pregnant or desirous of future pregnancy. Taken endometrial suppression medication, except for oral contraceptives, within 3 months of the procedure. Concurrent open or laparoscopic surgery.