Understanding Tail Injuries And Their Common Causes Tail injuries often develop from regular strong tail 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://insightfullink86.blogtov.com/19138721/why-k9-tail-protector-is-a-trending-topic-now