Learning About Canine Tail Problems and How They Happen Tail injuries commonly occur from constant enthusiastic wagging, unexpected hits against solid objects, and occasional bites or abrasions caused during play. In many cases, happy tail syndrome is triggered by continuous injury to the tail’s end, causing persistent bleeding and soreness. https://smartvlog129.suomiblog.com/the-growing-craze-about-the-vet-recommended-dog-tail-protection-54204088