Understanding Tail Injuries and Why They Occur Tail injuries often develop from constant enthusiastic wagging, unintentional knocks against walls or furniture, and minor self-inflicted wounds during games or exercise. In many cases, happy tail syndrome results from repeated trauma to the tip of the tail, causing persistent bleeding and soreness. https://smartframework21.answerblogs.com/38903183/trending-update-blog-on-dog-tail-injury-cover