Symptoms of thoracic spondylitis manifest as back pain and, in the case of bacterial infection, fever and loss of appetite. In severe cases, it can cause sensory or motor deficits in the lower extremities. Aseptic thoracic spondylitis may result if the patient has chronic poor posture or muscle fatigue. The main symptom is pain in the inflamed area of the thoracic spine in the back. The pain is unremarkable and tends to be distended or dull. If thoracic spondylitis is combined with a bacterial infection, resulting in bacterial thoracic spondylitis. Bacterial thoracic spondylitis is more painful than sterile thoracic spondylitis and is accompanied by fever or loss of appetite. If the inflammation of thoracic spondylitis spreads to the nerves, it may affect the patient’s nervous system, and there may be sensory or motor disorders in the lower limbs. Therefore, if you have back pain, fever, loss of appetite or lower limb sensory or motor disorders, you need to consult a doctor promptly.