Patients suffering from thoracoabdominal aneurysm may have symptoms such as chest pain, dyspnea and even shock. 1. Chest pain: when the patient’s thoracoabdominal aortic aneurysm increases rapidly, it may compress the surrounding neighboring organs, which leads to chronic pain in the chest and abdomen. The pain mostly appears in the left lower half of the chest and the middle of the back. 2. Difficulty in breathing: when the thoracic and abdominal aortic aneurysm compresses the trachea and bronchial tubes, symptoms such as coughing and difficulty in breathing will occur. 3. Shock: when the patient’s thoracoabdominal aortic aneurysm ruptures, the body will experience severe shock in a short time, accompanied by symptoms such as respiratory distress. Once rupture of thoracoabdominal aortic aneurysm occurs, the symptoms of rupture are very dangerous, and the patient should go to the hospital for treatment immediately. When patients experience the above symptoms, they should go to the hospital immediately to receive professional diagnosis and timely treatment from doctors.