Box walking and weaving are stereotypic behaviors that indicate welfare compromise in stabled horses, with prevention more effective than cure.
Stable stereotypies represent visible evidence of welfare compromise from environments that fail to meet horses' behavioral needs. The development of stereotypies requires chronic exposure to inadequate conditions - insufficient space, social isolation, restricted feeding, limited movement. Prevention is straightforward but requires prioritizing horse welfare over management convenience: adequate turnout, social contact, forage access, and space. Treating established stereotypies with physical barriers that prevent the behavior without addressing its cause may worsen underlying welfare.