Calf valgus deformity is usually caused by knee valgus, which is commonly seen in congenital X-shaped legs and can be augmented after correction. Knee valgus is a common lower limb deformity, mainly related to calcium deficiency, heredity, walking, standing and sitting posture. The knee valgus deformity can be corrected through conservative treatment or surgical correction. After correction, there can be some degree of height increase due to the restoration of the length of the longitudinal axis. The length of the increase varies depending on the degree of valgus deformity. The more severe the valgus deformity, the more pronounced the increase in height, while for patients with less severe valgus deformity, the increase in height is less pronounced, but can still improve the shape of the leg. When the discovery of knee valgus deformity, it is recommended to go to the orthopedic department of the hospital in a timely manner, improve the examination, the doctor for targeted treatment.