If the hernia is still obvious when the foal is four to six months of age, your veterinarian probably will recommend that it be repaired. Both approaches require general anesthesia and surgical preparation. The clamp is suitable for smaller hernias, no larger than two inches in diameter. It works by compressing the sides of the hernia with enough pressure to cause the hernia to slough off, while promoting healing underneath the clamp. The foal must be kept under observation during the process, which might take several weeks.
Surgical repair is required for larger hernias, but requires a shorter convalescence.
The surgical process is more complicated, and thus more expensive. Ignoring umbilical hernias is not a wise option. The opening can enlarge in response to any additional trauma to the abdomen. Also, the chances of obstruction and incarceration of the intestine are a possibility and could prove to be disastrous. A. C. Asbury, DVM, Dipl.