[Infrequent cause of bilateral obstructive uropathy].

Muscular haematoma of the straight muscles of the abdomen are very rare to observe and, although there is a possibility of the haematoma extending to the retroperitoneum, they very rarely cause oligoanuria by compression of the urinary tract. Presentation of one case of spontaneous haematoma of the straight muscles of the abdomen with urologic damage by ureteral compression inducing oligoanuria and bilateral ureterohydronephrosis.