Bog spavin is a soft tissue swelling of the hock joint in horses, often associated with poor conformation or OCD lesions. Understanding its causes and management improves welfare for affected horses.
The welfare impact of bog spavin depends substantially on the underlying cause. OCD-related bog spavin in young horses often improves dramatically with surgical fragment removal, restoring near-normal comfort and athleticism. Chronic arthritis-related effusion in older horses may not cause active pain but warrants monitoring. Horses with persistent effusion and accompanying lameness deserve pain assessment and appropriate management. Dietary and management interventions during the rapid growth phase can reduce OCD incidence, making prevention an important welfare strategy.