Low Dose Estriol With Lactobacilli Treatment for Preventing Recurrent Urinary Tract Infection in Postmenopausal Women

Inclusion Criteria: * Postmenopausal woman * History of urinary tract infection * Agree to abstain from self-medication with antibiotics for UTI symptoms * Agree to abstain from the use of any other intra-vaginal product * Capable of providing informed consent Exclusion Criteria: * Ovarian cancer, cervical cancer, breast cancer * Estrogen treatment within last 2 years * Vaginal bleeding * Antibiotic therapy fewer than three days prior to randomization visit * Known congenital urologic or gynecologic abnormalities * Indwelling urinary catheter * Thromboembolic disease * Uncompensated liver disease * Immunosuppressive drug within 60 days