Orthopedic insoles have different effects for people of different ages, and there are certain differences in the way different causes are corrected. For adults, wearing orthopedic insoles is generally mainly to change the force on the joints, which itself does not completely correct the deformity of knee valgus or knee inversion, so orthopedic insoles have some effect on the correction of leg deformity for adults, but it is very poor. For children the use of some orthopedic insoles can be mechanically transmitted through the lower extremities, which may have some benefit to the growth and development of the child, and may even have the effect of correcting the deformity. Because there are many causes of leg deformities, such as acquired bad habits and congenital factors caused by, can be improved by means of long-term persistent exercise, adhere to stand every day, legs together, abdomen and buttocks, adhere to half an hour a day, walk with both legs inward, keep the big toe of both legs in the same line, so that long-term leg deformities have a certain improvement effect. If there is no change after a period of exercise or if the deformity is progressively aggravated, be sure to go to a regular hospital for a clear diagnosis, do not delay the condition.