Lameness occurs due to the injury or debilitation of one or more parts of the leg: bones, muscles, nerves, tendons, ligaments, or skin. Depending on the cause of the limp, immediate veterinary care may be needed. If your dog is in severe pain, carefully transport your dog to your veterinary hospital or emergency hospital immediately. For non-emergency limps, you may be able to determine the cause of the limp and provide home care. If the lameness persists for more than 24 hours, seek veterinary care. Medication or surgery may be necessary to help your dog heal and reduce pain.