I was really excited to see a question from a fellow villager in Jinzhou. I graduated from animal husbandry and veterinary medicine. Your dog may have patella valgus, and the incidence of small dogs is high. I really don't know what to do with our family. Why not go to the pet hospital opened by the animal husbandry school? I don't know if it will open yet. Don't be a tutor in a big city for 20 years, and the liar who came back to open a pet hospital cheated you. China's pet has just started for more than ten years, and I don't know where he learned from the experience of those 20 years. I am in Beijing now, I hope your dog can recover!