Understanding Tail Injuries And What Causes Them Tail injuries commonly occur from constant energetic movement, occasional bumps against doors or corners, 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://collaborativeperspective64.blogsumer.com/37550631/article-to-know-on-dog-tail-injury-cover-and-why-it-is-trending