Hunchback i.e. lordosis is generally recommended to lie flat mainly, lying flat can help to normalize postural hunchback, unsuitable pillow may aggravate pathological hunchback. Hunchback deformity is generally categorized into congenital and acquired. Congenital kyphosis is common in children and adolescents, and with the development of the body if not corrected in time, the kyphosis will generally worsen gradually. Acquired acquired deformity kyphosis deformity has common postural kyphosis deformity, pathologic kyphosis deformity. For postural hunchback deformity, the main focus is on lying down, which can avoid further aggravation of the convex deformity, and is basically the same as the principle of brace correction. For pathologic hunchback deformity, such as thoracic compression fracture caused by vertebral osteoporosis, inappropriate pillow height may increase the degree of kyphosis. In addition, in the process of spinal vertebral degeneration, if the pillow is too high, it will also cause the cervical curvature to straighten, as well as the posterior fulcrum of the thoracic vertebrae and the upward shift of the stress zone to increase the degree of thoracic kyphosis.