It is the term used to refer to a postural deformity in which the knees, ankles when the knees are touching apart. The effect is that the legs are bowed. This is very common in young children between 1 and 2 years, especially if they started walking soon. Usually around age 3 it will resolve spontaneously (physiological genu varus). If not, the degree of bow is very high or there is a bone disease, indiccado make corrective surgery is to restore alignment.