Kyphosis is defined as an outward curvature of the thoracic spine (upper back). Abnormal kyphosis results in the appearance of a hunchback, which is accompanied by back pain, stiffness, and muscle fatigue in the back. There are three types of abnormal kyphosis: postural, Scheuermann's, and congenital kyphosis. Postural kyphosis is caused by poor posture and a weakening of the back's muscles and ligaments. Scheuermann's kyphosis is caused by a structural deformity of the vertebrae. Congenital kyphosis is caused by an abnormal development of the vertebrae prior to birth. Treatment of kyphosis depends upon the type of kyphosis the patient has. Read more: Kyphosis Article
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