Lameness, Stiffness, Difficulty going up or down stairs, Problems getting in or out of the car, Slowing down before their time, Hopping or skipping on back legs, Performance issues in sporting dogs, Slowing down or disinterested in walks, Gait or postural irregularities, Neck/back/shoulder issues, Reluctance to be petted/groomed/handled, Changes in behaviour – snappy or depressed, Self mutilation – biting or nibbling, Suffering from arthritis, hip dysplasia and other orthopaedic conditions, Nervous or Anxious, Crying in pain or yelping.