Wear on the outside of sole: the wear center of high arch foot /O-leg shoes should be in the middle of heel, and the inclination of about 4 degrees can be seen from the outside of heel. However, if the inclination is greater than 4 degrees, it means that the lateral stress of the heel is too large. This situation is usually due to the high arch foot, so that the weight tends to the outside of the foot, resulting in prominent wear on the outside of the shoe.
In fact, this way of walking can easily lead to joint sprain and injury, and long-term uneven stress will also lead to the wear of cartilage outside the knee, leading to arthritis. This method will also put pressure on the hip bone, leading to bone pain during sedentary. Suggestion: consult a podiatrist or orthopedic surgeon, practice gait, develop a correct walking posture, and then correct the bone structure.