What causes pain in the shoulder blade area of the back?

Possible causes of shoulder blade pain may include the following: 1. **Muscle strain**: Prolonged periods of低头, bending over, or engaging in heavy physical labor may lead to muscle strain in the muscles between the shoulder blades, causing soreness and swelling. 2. **Cervical disc herniation**: If a cervical disc herniates and affects surrounding nerve roots, pain may radiate to the shoulder blade area of the back. 3. **Coronary heart disease**: In elderly individuals, shoulder blade pain in the back may be related to coronary heart disease, often accompanied by symptoms of chest tightness and discomfort. 4. **Periarthritis of the shoulder**: Long-term excessive pressure on the shoulder blade and surrounding areas may lead to shoulder periarthritis, which can cause pain. 5. **Other diseases**: Internal medical conditions such as acute myocardial infarction or angina pectoris may also cause shoulder blade pain in the back. A specific diagnosis should be made based on individual circumstances and medical evaluation by a doctor.