In the case of bowlegs, the knee can be self-corrected by wearing braces and stretching the lower limbs, but adults cannot recover by self-correction. 1. People below the age of teenagers are prone to: physiological inversion of the knee, which is caused by faster growth during the developmental period, resulting in bending of the leg. Self-correction methods mainly include dietary treatment such as paying attention to dietary modification, appropriate calcium supplementation, auxiliary tools such as wearing lower limb orthopedic braces, orthopedic shoes, and exercise training methods such as lower limb stretching, which has a good effect on self-correction. 2. Adults: Self-correction does not work because the body has already developed and matured. For mild knee inversion, it has no special effect on the patient’s life and generally does not need treatment. Severe knee inversion is related to trauma and fracture, joint degeneration and severe osteoarthropathy, which can cause joint pain and swelling, limitation of activities, seriously affecting the patient’s life, and requires surgical correction, such as arthroplasty and osteotomy. If the symptoms of inversion of the knee, it is recommended to consult a doctor in time, under the guidance of the doctor, combined with the relevant examination results, to clarify the cause of the disease, so as to avoid delaying the condition.