Learning about Tail Injuries and Their Common Causes Tail injuries commonly occur from constant vigorous wagging, unintentional knocks against solid objects, and small cuts or grazes that occur during playful activity. In many cases, happy tail syndrome develops from constant damage to the tail tip, causing persistent bleeding and soreness. https://gammaplatform75.howeweb.com/39242419/how-much-is-it-worth-for-dog-tail-protector