The thoracic spinal segment is damaged and there are some associated parts or organs that may be affected by the disorder. The first thoracic vertebral segment is mainly associated with the heart, trachea, esophagus, forearm, etc. If the disorder occurs, it is susceptible to panic attacks, palpitations, bronchitis, shortness of breath, cough, dyspnea, left upper chest pain, wrist pain, and pain in the back of the arm. The second thoracic vertebra is mainly associated with the heart, trachea, esophagus, shoulder and arm. If disorders occur, it is easy to suffer from esophagitis, chest pain, shortness of breath, cough, abnormal blood pressure, cardiac arrhythmia, shoulder and arm pain, hand numbness, etc. The third thoracic vertebra is mainly associated with the lung, bronchus, esophagus, heart and thoracic cavity. If disorders occur, it is prone to asthma, cough, bronchitis, pneumonia, esophagitis, costochondritis, heart disease, chest tightness, chest pain, etc. The fourth thoracic vertebral segment is mainly associated with lung, bronchus, gallbladder, thoracic ribs, etc. If disorders occur, they are prone to pneumonia, asthma, jaundice, pleurisy, breast pain, intercostal pain, etc. The fifth thoracic vertebra is mainly associated with the liver, gallbladder, spleen and stomach, chest wall, etc. If disorders occur, they are prone to hepatitis, cholecystitis, splenomegaly, hypotension, gastritis, breast pain, chest wall pain, etc. The sixth thoracic vertebral segment is mainly associated with the pancreas, stomach, gallbladder, and thoracic dorsum. If disorders occur, it is susceptible to liver pain, stomach pain, gallstone disease, epigastric distension, intercostal pain, loss of appetite, chest and back pain, etc. The seventh thoracic vertebral segment is mainly associated with the liver, gallbladder, pancreas, duodenum, etc. If disorders occur, it is susceptible to liver pain, gallstone disease, gastric ulcer, type 2 diabetes, duodenitis, tonsillitis and other diseases.