Pre-purchase examinations are performed by a licensed veterinarian to help identify any pre-existing problems the horse may have and reduce the buyer’s risk. The extent of the exam is at the discretion of the buyer, but will at minimum include a thorough physical exam on the horse. Depending on the physical exam findings, an ocular, neurologic, and lameness exam may additionally be performed. Lameness examinations begin by localizing the lesion. It is often necessary to trot or lunge the horse to identify which limb is affected. The veterinarian will then localize the pain to a specific bone or joint and take x-rays of the limb if necessary. From there, recommendations will be made to the buyer regarding the severity of the lesion.