Patients with pelvic malalignment may exhibit the following symptoms: First, there may be unequal length of both lower limbs. If the patient is asked to adopt a supine position with both lower limbs squared, it is possible to see that both lower limbs have unequal lengths. Second, there may be some gait abnormalities. For example, such patients may have a limp in the process of walking, in addition to this, when the patient walks, there may be bilateral inconsistency in the trajectory of the hip movement. Third, some abnormal curvature of the spine may occur. If the patient is asked to keep both lower limbs upright, raise the chest and head, and observe the relevant depression of the spine at the back side, it is possible to see some abnormal curvature of the spine. Fourth, there may be pain associated with the lumbar spine, pelvis, and hip. This pain will be significantly increased after the patient performs long distance walking or exercise, and in addition the mobility of the patient’s hip, pelvis and lumbar spine will be reduced to some extent.