The causes of pain in the posterior scapula may be related to trauma, cervical spine disease, shoulder disease, thoracic organ disease and so on. 1. Trauma: due to violent blows or falls and other factors, it can lead to soft tissue injuries around the scapula, causing pain in the posterior scapula, accompanied by localized swelling and subcutaneous bruising and other symptoms. 2. Cervical spine diseases: such as cervical disc herniation, spinal stenosis and other diseases, due to the spinal cord and nerve root compression, can cause pain in and around the cervical spine, which can be radiated to the pain in the posterior scapula, accompanied by radiating pain and numbness in one side of the upper limb. 3. Shoulder diseases: such as scapula fracture, periarthritis of shoulder joint, supraspinatus tendonitis, etc., due to local inflammation stimulation, the pain in the scapula area may appear. 4. Diseases of thoracic organs: such as pleurisy, pleural thickening or adhesion, tuberculosis and lung cancer, etc., can also cause back pain, which can involve the posterior thorax, lateral thorax and scapula, etc. Cardiovascular diseases such as angina pectoris sometimes the pain can be radiated to the left scapula. There are many reasons for back shoulder blade pain, it is recommended that patients go to the hospital in time to clarify the cause of the disease, and standardized treatment under the guidance of the doctor.