The best time to correct an inside-out foot is usually around the age of 2 to 12 years old, when the bones of children grow rapidly. It is also the golden period for the formation of the foot arch, which is the most suitable time for correction. Correction methods mainly include wearing orthotics and exercising the lower limbs. 1. Wearing orthotics: Children with inward eight feet can wear orthotics to correct inward eight feet. At present, there are a lot of orthopedic shoes or insoles suitable for children to wear with good therapeutic effect. And the treatment is relatively easy, parents should find out as early as possible, as early as possible treatment. 2. Exercise the lower limbs: exercise the lower limbs can be carried out under professional guidance to balance the lower limb muscle strength training, strengthen the calf, thigh ankle and foot muscle strength. Thus, the effect of correcting the internal eight feet can be achieved. If the above treatments are not effective, then you need to go to the hospital for surgical treatment. Inside eight feet is usually due to improper shoes or obesity, poor sitting posture and so on, therefore, parents in daily life must give the child to wear suitable and comfortable shoes, once found with inside eight feet, should pay attention to correct in time, and can give the child to eat some more calcium-containing food.