Thoracic kyphosis is the particular angulation of the spine. Throughout its length, the spine is not completely straight and there are normal curvatures. Physiological thoracic kyphosis also exists, and the term is used to refer to excessive curvatures that primarily affect the upper part of the thoracic spine (between the shoulder blades), giving the appearance of a humpback. There are many causes of kyphosis: regular maintenance of bad posture (especially among youth), vertebral defects, and disease of the spine.
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. Translated by Jeff