Understanding Dog Tail Injuries and Why They Occur Tail injuries commonly occur from repetitive energetic movement, occasional bumps 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://trailblazingstation42.blogminds.com/the-growing-craze-about-the-vet-recommended-dog-tail-protection-35353852