Acute urinary retention caused by a unilateral hematometra.

We describe a unilateral hematometra with an associated hematosalpinx causing acute retention of urine in a female adolescent. Normal menstruation had occurred from the uterine cavity on the unaffected side. Treatment was by abdominal metroplasty with complete excision of the uterine septum and a terminal cuff salpingostomy. Urological investigation revealed ipsilateral renal agenesis.