Windgalls are fluid-filled swellings around a horse's fetlock joints or tendons. While often considered blemishes, persistent or tense windgalls can signal underlying discomfort that warrants attention.
The welfare significance of windgalls lies in their potential to signal pain or joint disease. Many horses with soft windgalls show no lameness, but the swellings reflect increased synovial fluid production — the joint's response to mechanical stress. When windgalls are warm, firm, or accompanied by gait changes, underlying conditions such as osteochondrosis or synovitis may be present. Neglecting these signs risks progression to chronic joint disease. Horses with persistent windgalls benefit from workload assessment, appropriate footing, and regular veterinary evaluation to distinguish cosmetic blemishes from welfare-relevant pathology.