Large colon torsion is the most common type of colic in foaling mares. The torsion occurs because after giving birth, the mare's abdominal cavity is missing about 150 lbs of foal, placenta, and amniotic fluid. The abdominal cavity, for both horses and humans, is the largest hollow space of the body. It will take days or weeks for the mare's abdominal muscles to return to normal position. During that period, the overall space within her abdominal cavity, which holds her intestines, particularly the large colon, has a lot more room to move around, resulting in an opportunity to twist. The good news is that quick surgical intervention can correct the twist, the blood supply can be re-established, and the mare can be back to good health in 30-60 days.
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