There are two common causes of pain on both sides of the back: 1. It may be myofasciitis of the back. The back muscles are usually strained by frequent exertion, resulting in chronic aseptic inflammation of the back fascia, usually with very clear pain points in the back muscles, and the pain will increase when pressed, usually with topical anti-swelling and pain-relieving ointment, or oral non-steroidal anti-inflammatory drugs, the symptoms can quickly improve. 2, small joint misalignment of the thoracic spine, usually formed by sprains or usually sleeping and sitting incorrectly. In addition to pressure pain in the muscles on both sides, there is also a very obvious pain point in the middle of the thoracic spine. And this pain point will be aggravated when the thoracic spine activities, you can go to the regular massage doctor to give the small joints of the thoracic spine reset, the symptoms will soon be improved.