Genetic O-legs, also known as knee entropion, can be corrected. If the entropion deformity is mild, it can be treated by splinting and tying the legs, while if the entropion deformity is more serious, surgery is needed. Knee inversion is a common deformity of the lower limbs, mainly related to genetics, calcium deficiency, standing posture and other factors, the common symptoms are difficult to keep the knees together, knee pain and so on. Knee inversion can be corrected, if the inversion deformity is mild, you can use the splint to tie the leg, use the pressure of the splint to adjust the joint ligaments and correct the inversion deformity, if the conservative treatment has no effect, the inversion deformity has been stabilized, you can take surgical treatment, osteotomy to correct the deformity. The specific way of knee inversion correction, it is recommended to timely consultation, under the guidance of the doctor, combined with their own situation, choose the appropriate treatment program.