Wandering pain in the back can be caused by the following reasons: First, intercostal neuralgia: usually the most common is intercostal neuritis, or after a traumatic rib fracture affecting the intercostal nerve, which leads to abnormal nerve sensation. In the case of herpes zoster, in addition to pain, it can be accompanied by the formation of localized strips of herpes zoster. If the intercostal nerve is irritated by a rib fracture, there should be a very clear history of trauma and a clear diagnosis can be made by taking a chest x-ray. Second, compression of the intercostal nerve: it may be a cervical spondylosis or thoracic spine related diseases compressing the intercostal nerve, which leads to wandering pain in the back, this condition will be accompanied by local numbness and weakness in addition to pain, and pain appears or worsens when moving the cervical spine.