There are more reasons for scapular soreness in the back, which may be related to a large number of exercises, frozen shoulder, myofasciitis and other reasons. 1. A lot of exercise: it may be due to too much exercise in the scapular area, causing accumulation of lactic acid in the muscles of the scapular area, stimulating the muscles and causing soreness of the scapula in the back. 2. Frozen shoulder: it is mostly due to chronic strain on the shoulder joint or surrounding soft tissues due to too much activity for a long time, or incorrect posture. Chronic inflammation of the shoulder joint and the surrounding tissues can cause soreness of the shoulder blade in the back. 3. Myofasciitis: due to acute sprain or trauma around the shoulder, causing aseptic inflammation of the muscles around the shoulder. It causes pain on the inner side of the shoulder blade, which can radiate to the shoulder and upper limb on the same side. When back shoulder blade pain occurs, it is recommended to consult a doctor in time, follow the doctor’s instructions for further examination, clarify the cause with the help of the doctor, and carry out targeted treatment or therapy.