What is the recurrence rate of postmenopausal bleeding in women who have a thin endometrium during a first episode of postmenopausal bleeding?

Objective: To determine the incidence and significance of recurrent postmenopausal bleeding among women diagnosed with an endometrial thickness < or =4 mm after a first episode of postmenopausal bleeding.

Methods: Consecutive patients not using hormone replacement therapy (HRT) presenting with a first episode of postmenopausal bleeding and an endometrial thickness < or =4 mm at transvaginal ultrasonography (TVU) were managed expectantly. In case of recurrent bleeding, the patient was evaluated according to the hospital's local policy with TVU, office endometrial sampling, hysteroscopy or dilatation and curettage (D&C) or a combination of these tests.