Bit and bridle fitting significantly affects horse welfare; poorly fitted equipment causes pain, resistance, and long-term oral damage.
Bit-related pain is a significant and underrecognised welfare issue in ridden horses, manifesting as resistance, head tossing, and reluctance that is often misidentified as a training problem. The equitation science field has demonstrated that many common ridden behaviour problems originate from equipment-related pain. Proper fitting by a qualified professional and regular reassessment as the horse's training and mouth develop protects welfare.