Published information concerning the frequency, consequences and outcome of kick injuries in horses is scarce. Thus, the hypothesis that kick injuries occur frequently and that they can lead to severe, sometimes incurable trauma was investigated in this retrospective study in order to obtain a better assumption of the prognosis by a statistical analysis. Records from all injured horses admitted to the Equine Surgery Clinic at the University of Zurich, between 1992 and 2000 were reviewed and cases of kick injuries further evaluated. Possible factors affecting healing of such injuries were also investigated. The majority of injuries seen at the above clinic occurred while the horses were on pasture, and a kick from another horse was the most common cause of injury. Fore-and hind limbs were injured with equal frequency, most commonly at the level of the metacarpal/metatarsal bones. In 47.2% of the cases, the kick injury was associated with a fractured bone. It was concluded that good emergency care and subsequent medical management improved the healing rate. Horses with a poor general body condition and a severe lameness exhibited inferior healing tendencies. A good prognosis for uneventful healing was given to those cases in which a definitive diagnosis and treatment was prompt and body mass-bearing bones of a proximal limb were not affected.