Bit selection and fitting is a critical but often neglected aspect of equine welfare, with poorly fitted or inappropriate bits causing chronic oral pain that affects behavior and performance.
The assumption that horses performing adequately are comfortable in their bits is contradicted by behavioral research showing that many horses habituate to low-grade chronic discomfort rather than displaying obvious signs of pain. Dental irregularities, sharp enamel points, wolf teeth, and temporomandibular joint problems all interact with bit action to cause pain that affects welfare and training outcomes. Welfare-centered horsemanship requires regular dental assessment, careful bit selection matched to the individual horse, and willingness to reconsider bitting when behavioral problems emerge.