After surgery for patients with thoracic spinal stenosis, the symptoms are not eliminated immediately, but need to be relieved gradually. Many patients will experience back pain and swelling after one month after surgery, which is very annoying to the patients. The reason why patients with thoracic spinal stenosis experience lumbar soreness after surgery may be directly caused by surgical trauma on the one hand, and weakness of the muscles on both sides of the spine (collectively known as the paraspinal muscles) on the other. In healthy adults, “wasting” muscle atrophy occurs after more than 2 weeks of continuous bed rest, and the manifestation of muscle atrophy is that the lower back is very obvious when moving on the ground, and you always want to use your arms to support your own body, which can be relieved quickly as long as you lie down. Therefore, it is recommended that patients do not overdo bed rest after surgery, in the early days after discharge from the hospital to adhere to a moderate amount of daily activities on the ground, about four weeks after the operation, the wound pain disappears, we should start to do the function of the paraspinal muscle exercise. When the muscle function recovers well, the symptoms of lumbar soreness and discomfort will disappear. Doctor’s tip: specific exercises should be carried out under the guidance of the doctor, the intensity of the exercise must follow the principle of “gradual”, after the discharge of the patient should also follow the doctor’s instructions to adhere to the functional exercise.