The problem of a foreign body left in the operative field is rarely discussed in the medical literature despite the multiple complications it might cause. The purpose of this article is to report on a patient who developed an enterovaginal fistula secondary to a pack left in the pelvis to temponade post-hysterectomy bleeding. The fistula closed spontaneously after three months of expectant management. Expectant management of enterovaginal fistulae is feasible. Adequate reporting of the operative procedures performed and the use of tagged sponges is a must.