It is very good to go to Renji, Beijing for training in the diagnosis and treatment of postoperative recurrence of lumbar disc herniation. This is a follow-up teaching method. The director personally teaches in the orthopedic clinic and follows the director to learn the diagnosis and treatment of postoperative recurrence of cervical disc herniation. Beijing Renji Orthopedic Clinic has 30 outpatient clinics every day, and the treatment efficiency here is about 90%. Under the guidance of the director, the students have ample business opportunities, and 70% of the graduates here have set up their own shops.