<Tr> <Th> MeSH </Th> <Td> D056304 </Td> </Tr> <Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> <P> Genu valgum, commonly called "knock - knee", is a condition in which the knees angle in and touch each other when the legs are straightened . Individuals with severe valgus deformities are typically unable to touch their feet together while simultaneously straightening the legs . The term originates from the Latin genu, "knee", and valgus which actually means bent outwards, but in this case, it is used to describe the distal portion of the knee joint which bends outwards and thus the proximal portion seems to be bent inwards . For citation and more information on uses of the words Valgus and Varus, please visit the internal link to - varus . </P> <P> Mild genu valgum is diagnosed when a person standing upright with the feet touching also shows the knees touching . It can be seen in children from ages 2 to 5, and is often corrected naturally as children grow . However, the condition may continue or worsen with age, particularly when it is the result of a disease, such as rickets or obesity . Idiopathic genu valgum is a form that is either congenital or has no known cause . </P>

The diagnostic term genu varum ( knees are in the varus position) means