The foot O is the opposite of the foot X, when the knees are relatively far apart even when the foot is closed, ie they are outwards. The O-leg develops due to genetic causes, but up to the age of 1-2, the disorder can recover on its own. This is not a pleasant condition that can lead to unsteady gait and pain. If the lesion is already very severe, it can be corrected with surgery. [img alt_text = '' description = ''] https:///wp-content/uploads/2018/02/031_Genu_varum.jpg [/ img]