Overriding dorsal spinous processes (kissing spines) cause back pain in horses that impairs performance and welfare; modern diagnostic and treatment options have improved outcomes.
Horses with painful kissing spines show behavioral signs including resistance to saddling, bucking, and reluctance to go forward that are frequently misinterpreted as evasion or behavioral problems. These horses are communicating pain. Addressing kissing spines before applying escalating training pressure prevents significant welfare harm and the breakdown of the horse-rider relationship through punishing pain-avoidance behavior.