Protruding backbone may be caused by the normal physiological curvature of the spine, or it may be caused by kyphosis, osteophytes, too much thinness and so on. 1. Physiological factors: the spine has four physiological curvatures: cervical, thoracic, lumbar and sacral curvatures, and the thoracic curvature protrudes backward, thus leading to protruding back bones, which is a normal physiological phenomenon. 2. Posterior spinal deformity: it is a kind of spinal deformity caused by muscle ligament relaxation, osteoporosis, gravity and other factors, the treatment should be to correct the bad posture, but also can use spinal support and other treatments. 3. Osteomalacia: Osteomalacia is a kind of bone proliferation formed on the edge of normal bone, abnormal weight bearing, abnormal stress and osteoporosis and other factors can lead to osteomalacia, the treatment can use diclofenac, ibuprofen and other drugs for pain relief, but also through the surgical way of removing the proliferation of bone spurs. 4. Too thin: too thin can also lead to the appearance of back bone protrusion, the patient’s back scapula, spine spine, ribs, etc. will appear very prominent, the treatment should be aimed at the primary causes of thinness, such as malnutrition, tuberculosis and other diseases for treatment. If the symptoms of protruding bones in the back appear, please consult a doctor in time to find out the cause so as not to delay the condition.