Scar pregnancy is an ectopic, life-threatening pregnancy (hemorrhage or uterine rupture) that can also involve functional prognosis (hysterectomy). Its incidence is rare, but is likely to increase due to the rise in Caesarean section rates, these past few years. The clinical signs include metrorrhagia in variable abundance and/or pelvic pain in patients with uterine scarring. Diagnosis is made by endovaginal ultrasound, using the Vial criteria. The case we report in this article will enable us to discuss the pathophysiological, diagnostic and therapeutic criteria of this pathology, with the help of a literature review.