Puerperal hematomas are a major complication of delivery. Little information about the role of sonography in the management of puerperal hematomas is available in the English literature. We report a case of a vulvovaginal hematoma that developed subsequent to vaginal delivery and that was managed conservatively using sonography. Our report includes the sonographic follow-up of the lesion with MRI correlation. The present case report suggests that sonography has a role in the detection and follow-up of the condition, with MRI providing a more detailed mapping of the lesion and excluding any retroperitoneal involvement.