How do I get my horse to stop avoiding corners in the arena?

Corner avoidance is almost always rooted in one of two causes: the horse is evading the rider's aids by cutting corners to avoid bending and engagement, or the horse has a genuine physical resistance to bending that makes corners uncomfortable. Horses that consistently avoid corners while tracking in one particular direction more than the other are often pointing to a stiffness or suppleness imbalance that should be addressed through progressive lateral work before demanding accurate corners under pressure. For horses that are physically capable but habitually cutting corners, the correction is to ride corners with purpose rather than passively allowing the horse to drift. Approach each corner with your inside leg actively pushing energy forward and into the outside rein, which contains the drift and channels the horse into the bend. Many riders collapse their inside hip or drop their eyes to the corner as they approach it, which shifts weight incorrectly and allows the drift to happen before it can be corrected. Look ahead through and out of each corner — your eyes lead the horse's direction. If the horse cuts a corner, do not simply steer back to the rail; ride back to the exact spot where the corner should have been and ride it correctly. Repetition with immediate correction teaches the horse where the line is. Arena work with ground poles placed in corners is also effective — it gives the horse a visual and physical boundary that discourages cutting.