Back pain after a cold, there are several common causes: 1, because after the cold back muscles appear poor blood circulation, thus causing local muscle spasm and resulting in spastic pain. This situation is generally through the method of hot compresses or rest, the symptoms will soon be able to improve. 2, may be after the cold, the back muscle spasm and thus involved in the thoracic spine, resulting in the thoracic spine of the small joint misalignment. This situation mainly causes pain in the middle of the back where the thoracic vertebrae are located, and will intensify when moving, with the symptoms of compression. If this symptom occurs, it can be quickly relieved by the massage physician who gives manual reset. 3, it is possible that the back muscle strain was stimulated after the cold, resulting in the onset of local inflammation, which is common in the back fasciitis, which can generally be improved by applying topical creams or taking non-steroidal anti-inflammatory drugs.