Genu varum (also calle bow-leggedness or bandiness), is a deformity marked by medial angulation of the leg in relation to the thigh, an outward bowing of the legs, giving the appearance of a bow. It is also known as bandy-leg, bowleg, bow-leg, and tibia vara. Usually there is an outward curvature of both femur and tibia. "Genu varum" is distinguished from Blount's disease because it involves both the femur and the tibia, while "Blount's disease" affects only the tibia with no femur involvement.