Kaschin-Bek disease is also known as Kaschin-Bek disease, which is also known as "dwarf disease", "abacus disease" and "willow crook disease". It is an endemic cartilage and joint deformity disease, and a deforming bone and joint disease with cartilage necrosis as the main feature. It often occurs in children and adolescents, mainly invading the bones and joint systems of children and adolescents, leading to endochondral bone formation disorders, shortening of tubular bones and secondary deforming joint diseases. It causes development disorders of tubular long bones, thickening of joints, pain, muscle relaxation, atrophy and movement disorders. Patients are characterized by short stature, short fingers, joint deformities, abnormal gait (typical limping, duck steps), etc.