There are two main reasons for shoulder pain in hand raises: First, due to strain or strain on the lateral deltoid, superior supraspinatus, and anterior biceps long head tendons, the deltoid and supraspinatus muscles will show contraction when the arm is raised for abduction, and if there is strain or strain, the injury location will be stimulated and significant pain will occur. When the arm is raised forward, the biceps longus tendon contracts, and if there is significant pain, it indicates that they are injured, strained, or strained. Second, due to adhesions in the shoulder joint position, such as the presence of long-term inflammatory lesions, the process of inflammation absorption will lead to adhesions in these muscles, and when lifting the hand the adhesions will be stretched and there will be a more obvious pain, and often the shoulder also has a cold condition, and the muscles themselves become tense and the adhesions are more serious components, and there will be obvious pain.