Understanding Dog Tail Injuries And Why They Occur Tail injuries frequently happen from constant energetic movement, occasional bumps against walls or furniture, and occasional bites or abrasions caused during play. In many cases, happy tail syndrome results from repeated trauma to the tail tip, causing splits, bleeding and ongoing irritation. https://todayslink229.alltdesign.com/readers-views-point-on-k9-tail-protector-and-why-it-is-trending-on-social-media-57288319