If your gelding wants to cross canter, or kicks at non-existent flies on his belly, or counter bends at the canter, he may have scar tissue that is causing discomfort. Sometimes the symptoms won’t show up until he moves up the levels: what was mildly irritating at the baby level may become impossible to ignore as the jumps go up, or the movements become more complex. The more the horse has to use his abdominal muscles, the more uncomfortable and tight the gelding scar will feel.
I have learned that if I see a restriction in the pelvis, the cause may be coming from the gelding scar. Myofascial release can be very effective for this problem. Within 10 minutes you will have a more cooperative and happy gelding. Often, what was thought of as a pelvic misalignment will correct itself once the tight scar tissue is softened.