A back injury can be due to a muscle or soft tissue injury, a break in the bone, or a prolapsed or deteriorating intervertebral disc. Depending on the nature of the back injury, paralysis (inability to move) can result. Back injuries can arise from traumas such as car accidents, falls, fights with other animals, and physical abuse. Some dogs are more prone to back injury because of an underlying intervertebral disc disease commonly seen in Dachshunds, Cocker Spaniels, and Labradors. Seek veterinary attention immediately.