Does the Uterus Hold the Intestines in Place? No—Muscles, Ligaments, and Mesentery Provide Support

The uterus is a pelvic organ; it does not support the intestines. Intestinal position is maintained by:

• Mesentery: Double-layer peritoneal fold attaching small bowel to posterior abdominal wall (root: L2–L4). Contains vasculature, lymphatics, nerves. Allows mobility while preventing volvulus.
• Peritoneal reflections: Ligaments (e.g., gastrocolic, splenocolic, phrenicocolic) create compartments.
• Abdominal wall musculature: Rectus abdominis, obliques, transversus abdominis — tone maintains intra-abdominal pressure.
• Retroperitoneal fixation: Ascending/descending colon, pancreas, kidneys fused to posterior wall.
• Pelvic floor: Levator ani supports rectum/sigmoid.

After hysterectomy, the vaginal cuff is closed; bowel fills the space (physiologic). Adhesions (post-surgical) can cause obstruction but are not due to "loss of uterine support."