Long-term pain in the left shoulder blade may be caused by frozen shoulder, rotator cuff injury, cervical spondylosis, etc., which needs to be treated by general treatment, medication (ibuprofen, nimesulide, meloxicam, physical, surgery, etc.). 1. Frozen shoulder: long-term pain in the left shoulder blade may be caused by frozen shoulder, the patient’s shoulder joint and the surrounding soft tissues have degenerative changes, long-term over-activity and poor posture resulting in chronic injury, which can be treated with medication, such as ibuprofen, acetaminophen, etc. Surgery can also be performed. It can be treated by medication, such as ibuprofen, acetaminophen, etc. It can also be treated by surgery, and common surgical methods include arthrotomy and capsulotomy, hydrodistension, and arthroscopic shoulder joint release. 2. Rotator cuff injury: if affected by impingement injury, trauma, insufficient blood supply and other factors, it will lead to long-term hidden pain in the left shoulder blade, which can be treated by medication, such as nimesulide, diclofenac, ketoprofen and so on, and can also be treated by physical therapy, local electrotherapy, magnetotherapy and other methods to reduce tissue edema, which will help to reduce the role of pain. 3. Cervical spondylosis: long-term pain in the left scapula may also be related to cervical spondylosis, irritation or compression of the cervical nerve roots, spinal cord, blood vessels, etc., can be treated through general treatment, improve bad habits, do shoulder and neck exercise, but also through drugs, such as meloxicam, celecoxib, etc.. It is recommended that patients go to regular hospitals in time, under the diagnosis of the doctor, according to the patient’s specific condition performance, to take targeted treatment. The use of drugs need to follow the doctor’s instructions.