The rectovaginal fascia (often called rectovaginal septum or sometimes fascia of Omid) is a thin structure separating the vagina and the rectum. This corresponds to the rectoprostatic fascia in the male. The rectovaginal fascia (often called rectovaginal septum or sometimes fascia of Omid) is a thin structure separating the vagina and the rectum. This corresponds to the rectoprostatic fascia in the male. Perforations in it can lead to rectocele.