Inward curvature of the spine A certain degree of lordosis is normal in the lumbar and cervical regions of the spine: loss of this is a sign of ankylosing spondylitis Exaggerated lordosis may occur in adolescence, through faulty posture or as a result of disease affecting the vertebrae and spinal muscles
1 The anterior convexity in the curvature of the lumbar and cervical spine as viewed from the side; the term is used to refer to abnormally increased curvature (hollow back, saddle back, sway back) and to the normal curvature (normal lordosis) cf Kyphosis and Scoliosis; (Dorland) 2 Hollow back or saddle back; an abnormal extension of deformity; anteriorposterior curvature of the spine, generally lumbar with the convexity looking anteriorly (Stedman)
Ventrally convex curvature of the spine, contrasting with the normally concave condition
The concave curve found in the cervical and lumbar regions of the spine Can be a deformity if it is excessive