Thoroughbred racehorses are bred for speed at significant welfare cost, facing high rates of musculoskeletal injury, exercise-induced bleeding, and psychological stress from intensive training and competition.
Racehorse welfare involves systemic welfare compromises rooted in the sport's breeding and training culture. Selective breeding that prioritizes speed has produced horses with increasingly fragile limb structures prone to catastrophic injury — the catastrophic breakdowns visible at racetracks represent a small fraction of the musculoskeletal damage accumulated throughout training. Extended stabling is a significant behavioral welfare concern: horses evolved to move continuously across grasslands, and confinement to 22+ hours of stabling causes gastric ulcers (affecting over 90% of racehorses in some studies), stereotypic behaviors, and psychological distress. The financial pressure to race horses before full musculoskeletal maturity — starting 2-year-olds before bone growth plates close — increases injury risk. The racing industry's welfare obligations extend beyond the track: retired and "wastage" horses that cannot race require appropriate rehoming, retraining, or humane euthanasia, not abandonment or sale into uncertain circumstances.