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Lordosis refers to the natural inward curvature of the spine in the cervical and lumbar regions. However, it can also describe an abnormally exaggerated forward curvature of these areas, often called swayback or hyperlordosis. This condition can be associated with other spinal issues like spondylolisthesis, intervertebral disk inflammation, or obesity. In some female mammals, lordosis is a mating posture characterized by an arched back. Lordosis is one of several spinal deviations, alongside scoliosis (sideways curvature) and kyphosis (outward curvature).12

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