Imperforate hymen complicated by obstructive acute renal failure

Imperforate hymen is a rare malformation (1/ 1000 female births). It is diagnosed most often during puberty. Early diagnosis of hematocolpos and evacuation is necessary to avoid any consequences. We report a rare case of an imperforate hymen complicated with acute urinary retention, hydronephrosis and renal failure in a 14-year-old girl to emphasize the possible misdiagnosis and its possible consequences. This is the first case we encounter in our unit.