The clinical manifestations of thoracic spondylosis are complex and indefinite, varying in terms of the location, nature and extent of the lesion. Because of the close relationship between the anatomical structure of the thoracic spine and the sympathetic nerve, clinical symptoms are often combined with certain visceral symptoms due to sympathetic nerve damage in addition to neurogenic pain symptoms, so that many cases are misdiagnosed as various visceral disorders. This is an important clinical feature of thoracic spondylosis. It rarely attracts the attention of clinicians. 1. Back pain and intercostal radiating pain: It is the main symptom of thoracic spondylosis and often occurs after sprain or prolonged weight-bearing and prolonged sitting. Initially, the pain is mostly limited, concentrated in the vicinity of a certain part of the thoracic spine, and is aggravated after physical labor to obtain a certain fixed posture and continuous work, so that the pain can be alleviated by changing the position frequently or by less activity. In addition, patients are often awakened by pain during sleep at night and feel abnormal back pain, mainly soreness, heaviness, dull pain or burning pain between the two scapulae, and a feeling of heavy pressure in the chest. With the development of the disease, often after a certain trauma, overexertion or cold, the pain starts to radiate to the corresponding back and shoulder, abdomen or visceral area, mostly in the nature of severe stabbing or burning pain. The pain can be triggered and aggravated by stretching and turning, bumping and shaking or coughing. On physical examination, it is common to see limited mobility of the thoracic spine, especially posterior extension is more significant, dorsal longissimus muscle tension and thoracic muscle note mild lateral wrist, etc. Most of the spines of the parallel vertebrae have radiating pressure pain next to the spinous process. The involved root zone often shows sensory hypersensitivity, occasionally or hypoesthesia, and may also see hyperactive tendon reflexes of the lower limbs and weak abdominal wall reflexes. 2. Precordial pain: It is often a cause of fear in patients and is often seen because of suspicion of angina pectoris, characterized by precordial pain occurring simultaneously with back pain, sometimes after lifting heavy objects, poor posture, coughing or sneezing. This pain is mostly of a compressive, tightening nature, mostly in a band-like distribution, from the left back to the precordial region and radiating to the left axilla. The pain in the precordial region mostly relieves itself after 15-20 minutes, but often disappears completely after several days. Even after the pain disappears, there is usually still pressure pain in the 2nd-5th intercostal area and even in the left axilla. In addition to the above characteristics, the following may help to distinguish it from angina pectoris: thoracic spinal pathogenic regional heart pain is less severe and longer lasting than angina pectoris. It is ineffective to take nitroglycerin; there is no abnormality in electrocardiogram; sometimes symptoms can be induced by percussion or pressure on the thoracic 2-7 spine. 3, abdominal pain: the lower end of the thoracic spondylosis can cause abdominal pain similar to the nature of acute abdomen, sometimes can be misdiagnosed as acute cholecystitis, appendicitis and other diseases, and there have even been reports of caesarean exploration surgery. The manifestation of abdominal radiating pain of thoracic spine origin is characterized by episodes of abdominal pain mostly related to sprains and stressful labor, and the painful area is usually distributed in a band. In addition, this abdominal pain is mostly accompanied by severe heartburn and constipation, but there is no acid reflux phenomenon. 4, genitourinary symptoms: lower thoracic spine damage, occasionally combined with pain of the nature of renal colic, difficulty in urination, as well as loss of libido and male impotence and other phenomena. 5, spinal cord symptoms: relatively rare, mainly caused by thoracic disc herniation, often in acute or subacute attacks after trauma. Its performance is quite similar to the compression caused by spinal cord tumor or limited adhesive spinal arachnoiditis. The main symptoms are typical intercostal neuralgia or band abdominal pain, weakness and numbness of the lower limbs, and sphincter and sexual dysfunction. On physical examination, there is percussion pain in the spinous process of a thoracic vertebra, definite pressure points in the paravertebral area, decreased muscle strength in the lower limbs, hyperactive tendon reflexes, positive pathological reflexes and decreased deep and superficial sensation.