X-shaped leg is also known as knee valgus deformity. Improvement of knee valgus deformity can be achieved through postural adjustment, use of lower limb braces as prescribed by the doctor, and surgery. 1. Adjustment of posture: If the knee valgus deformity is detected at an early stage, it can be improved by adjusting the posture. 2. Use of lower limb braces: adolescent patients or those with mild symptoms of knee valgus deformity can insist on the use of lower limb braces, which are useful in correcting the shape of the leg. 3. Surgery: If the leg valgus is too serious and has a greater impact on the patient’s daily life, osteotomy can be used for treatment. When patients have knee valgus deformity, it is recommended that they go to orthopedic department of regular hospitals in time and choose the suitable treatment plan according to their own conditions.