In a retrospective study the acute complications observed in 1000 consecutive ERCP were recorded. The overall acute complication rate was 7%. Bleeding following sphincterotomy was not relatively frequent when the pa- pila was located at the rim of or inside a diverticulum, compared to patients without a diverticulum. Bleeding was not observed more frequently in patients after precut papillotomy.

        Key words: complications, sphincteretomy, bleeding, precut