Abstract: ObjectiveTo analyze the classifications of the abnormalities of cervical curvature and its treatments with manipulation. Methods209 patients with cervical lordosis were analyzed. The abnormalities of the cervical curvature were classified as over-curvature (>45°), hypo-curvature (0°～30°), the straightened cervix (0°), backward curvature(0°～―20°), multiple curvatures (the cervical curvature showed "S" shaped). The C_5 subluxation were restored with manipulation in patients with hypo-curvature and straightened cervix, or other vertebra subluxation in multiple curvatures. Results1~4 yeared follow-up, 127 cases were excellently well being, 59 were well being, 23 were improved.ConclusionManipulation is effective on abnormalities of cervical curvature.

Key words: abnormalities of cervical curvature, vertebra subluxation, classification, manipulative restoration