Understanding Canine Tail Problems And Why They Occur Tail injuries often develop from frequent vigorous wagging, occasional bumps against hard surfaces, and small cuts or grazes caused during play. In many cases, happy tail syndrome results from repeated trauma to the tip of the tail, causing persistent bleeding and soreness. https://dedicatedfield974.blogspothub.com/37433691/how-much-do-you-know-about-happy-tail-syndrome-treatment