Retrof Thelexed Uterus Displayed In Sagittal Section

Description

Uterus and cervix are cut in a midline sagittal section, highlighting a retroflexed configuration in which the uterine body bends posteriorly relative to the cervical axis. The cervix occupies an inferior position and continues superiorly into the uterine isthmus, while the fundus projects posteriorly toward the rectouterine pouch (pouch of Douglas). Anterior to the cervix and lower uterine segment, the expected relationship to the urinary bladder is apparent, with the vesicouterine space separating these organs. The endometrial cavity and cervical canal form a continuous lumen, but their angulation is conspicuous in this retroflexed uterus. Retroflexion matters because it changes the line of access through the external os and internal os, a practical issue during intrauterine device placement, endometrial sampling, and dilation and curettage where the sound or cannula must follow the posterior bend rather than the typical anteflexed trajectory. It also reframes how you interpret pelvic ultrasound: the uterine body may lie more posteriorly in the pelvis, and the posterior myometrium can appear closer to the rectum, affecting assessment of posterior fibroids and deep infiltrating endometriosis in the rectovaginal septum. Expect an angle. The fixed sagittal perspective makes the cervico-uterine junction easy to teach because the spatial relationship between uterine body, cervix, and posterior pelvic compartment is expressed in a single plane without distraction. Use this illustration in gross anatomy and pelvic anatomy courses when introducing uterine position (anteversion, retroversion, anteflexion, retroflexion) and when clarifying how “retroflexed” differs from “retroverted” on bimanual examination. It also fits well in gynecology procedure manuals, patient-facing surgical consent materials for hysteroscopy, and radiology teaching files focused on pelvic sonography landmarks. Anatomical accuracy verified by SciePro's Medical Advisory Board.