Consider the causes of congenital development, hip dislocation, scoliosis, pelvic tilt, etc. Conservative or surgical treatments should be carried out to address the causes of the disease. 1. Congenital developmental causes: the two legs are not equal in length due to congenital causes, if the difference is less than 2 centimeters, you can wear insoles and put them on the short side, if the difference is more than 2 centimeters, then bone lengthening surgery will be performed. 2. Hip dislocation: Hip dysplasia or traumatic dislocation of the hip joint can cause unequal length of the legs, you can perform manipulative reset or incision reset, and if the bone is necrotic, perform hip replacement surgery. 3. Scoliosis: severe scoliosis will cause unequal length of the lower limbs, orthopedic braces or spinal nailing system to correct. 4. Pelvic tilt: If the patient has a mild case, change the bad posture and perform pelvic rehabilitation; if the tilt is serious, perform surgical osteotomy to correct it. So the right leg is long and the left leg is short, go to the hospital to find out the specific reasons, for the cause of the treatment.