Kyphosis is a pathological spinal curvature from behind. In normal state there is a flexure in thoracic department, but at a kyphosis it becomes too expressed and leads to various disturbances.

In development of kyphosis heredity, illnesses of central nervous system are important: poliomyelitis, children’s cerebral palsy. Kyphosis and complication of vertebrae fracture in thoracic department arise.

At rachitis, osteoporosis and some endocrine illnesses there is calcium deficiency in organism, durability of vertebrae decreases and they are deformed.

Children and young men have a postural kyphosis, because of wrong posture, at continuous disturbances of posture against rapid growth of skeleton and weakness of muscles. Backbone operations can be complicated by kyphosis. At advanced age there are degenerative changes in vertebrae. Kyphosis also causes lesion of vertebrae tuberculosis and tumors.

Kyphosis is shown from slightly noticeable slouch to a big hump. There is an arched kyphosis (round back) and elbow kyphosis (gibbosity). The bowed back, sunken breast, protruding abdomen, pulled-in shoulders attract attention. The vertical axis of the body and the center of gravity is displaced. Because of excessive load on feet the platy-podia, arthritis in feet joints is formed.

There is an osteochondrosis in backbone; intervertebral disks with formation of hernias are affected. Radiculitis is their consequence. The patient is disturbed by a thorax pain and shoulder girdle, arms, sensitive and motion disturbances. Limited flexibility of thorax leads to respiratory failure. Increased pressure in abdominal cavity promotes diseases of gastrointestinal tract.