Prepubertal Genital Bleeding: Examination and Differential Diagnosis in Pediatric Female Patients.

Background: Prepubertal genital bleeding can be caused by a variety of etiologies including trauma, infection, structural, hematologic disorders, precocious puberty, and malignancy. Urethral prolapse can be seen in prepubescent girls due to a relative estrogen deficiency. Urethral prolapse classically presents with urethral mass and vaginal bleeding, often associated with constipation.