The radiographic evaluation of the fetlock joint as part of a lameness or prepurchase examination oftenreveals osteochondral fragmentation. These fragments can either be causing lameness or have no clinicalimportance at the time of examination. However, they can cause lameness at a later stage. An appropriateanalysis of the situation requires a correct assessment of the fragment type and an up-to-date knowledge oftheir possible clinical importance. In this overview, the most common types of fetlock fragments, such asdorsoproximal first phalanx (P1) and proximal synovial pad fragments, as well as fragmentation on theproximal palmar/plantar border of P1 and of the sesamoid bones are discussed. A few cases of uncommonlarge fragmentation on the abaxial borders of P1 are included. Fetlock fractures, obviously causing lameness,such as dorsofrontal fractures of the proximal phalanx, distal metacarpal/metatarsal and sesamoid bonefractures, are not dealt with in this review.