Learning about Dog Tail Injuries and How They Happen Tail injuries often develop from regular vigorous wagging, unintentional knocks against hard surfaces, and small cuts or grazes caused during play. In many cases, happy tail syndrome results from repeated trauma to the tail tip, causing splits, bleeding and ongoing irritation. https://brilliantoutlook329.blogprodesign.com/59791556/how-much-is-it-worth-for-k9-tail-protector