Learning about Tail Injuries and Their Common Causes Tail injuries typically arise from frequent vigorous wagging, unintentional knocks against hard surfaces, and minor self-inflicted wounds picked up while playing. In many cases, what’s called happy tail syndrome stems from repetitive impact to the tail’s end, causing persistent bleeding and soreness. https://corecircle10.mybuzzblog.com/18514111/the-blog-on-protect-dog-tail-from-injury