“Frozen shoulder” is very helpless, obviously rotator cuff injury is the highest incidence of shoulder joint diseases, followed by subacromial impingement and shoulder instability, the total incidence of these three diseases accounted for almost 70% of shoulder joint diseases, or even more. The incidence rate of “frozen shoulder” is relatively low, but it is the most “blame”. 1, what is frozen shoulder Frozen shoulder is now known as “frozen shoulder”, commonly known as “fifty shoulders”, chronic injury or aging of the shoulder joint and the tissues around the joint will cause chronic inflammatory reaction of the local muscles, tendons, joint capsule and other soft tissues, that is, so-called Frozen shoulder. Its main symptom is limited shoulder joint activity, can not lift the upper limb, even if others help can not lift the upper limb, the hand can not touch the back of the head, affecting the combing action. It can be accompanied by pain, especially when the activity to the maximum angle of the pain is obvious, the pain at night is obvious, can wake up with pain. However, frozen shoulder is a self-limiting disease, without treatment, after a few months or more than 1 year, most of the patients’ pain can disappear and joint function can be restored. 2.What is subacromial impingement sign When the shoulder joint is abducted, especially when the shoulder joint is abducted and lifted flat, the humeral head will collide with the acromion, thus affecting the bursa of the shoulder joint, and inflammatory reaction will occur, which will cause pain at the shoulder joint. The pain is mainly chronic and dull, which will be aggravated when the shoulder is lifted up or when the shoulder joint is abducted. 3, what is rotator cuff injury rotator cuff is a collective name for the four tendons in the shoulder joint, they are cuff-like around the humeral head. The rotator cuff is located between the acromion and the head of humerus, and its main function is to help stabilize the shoulder joint and shoulder joint movement, protect the head of humerus from being pulled up by the deltoid muscle, and avoid impingement with the acromion. The main manifestation of rotator cuff injury is shoulder joint pain, waking up in the middle of the night with pain or not being able to sleep because of pain, pain in upper limb lifting, especially in the process of lowering after lifting, the pain will be aggravated, the pain part is mainly in the anterior and lateral side of the shoulder joint, and the pain can be radiated to the upper arm. Another symptom is that the upper limb is weak when lifting, but can rely on the other upper limb to help lift. 4.Common Misconceptions Myth 1: Shoulder pain does not need treatment as long as it does not affect daily life. This is wrong, shoulder joint pain, is the body to give the signal, indicating that the shoulder joint has a problem, need to be diagnosed and treated. Myth 2: Shoulder pain should adhere to the “manipulation of the release”, “climbing the wall” and other ways of exercise. Exercise must be carried out under the guidance of a professional doctor, inappropriate exercise may be counterproductive, for example, if the rotator cuff tear patients to pull the sling, climbing the wall may aggravate the condition. Myth 3: Shoulder pain can be handled by applying some pain relieving drugs or plasters on your own. This situation is likely to mask the condition and further aggravate the injury. Myth 4: Treatment can be stopped after getting better. Shoulder pain patients have a longer treatment time, do not stop treatment immediately after improvement, need to be treated for a longer period of time to reduce the chance of recurrence. Specifically need to follow the doctor’s arrangements. Myth 5: Shoulder pain is only a minor problem and does not require surgical treatment. If it is rotator cuff injury, you need to undergo surgery to sew the rotator cuff, without sewing can not be healed, and will be further aggravated. 5.What should I do if I have shoulder pain? Shoulder pain, the first thing to do is to go to the hospital, a clear diagnosis, and then symptomatic treatment. Freezing shoulder will be cured after rehabilitation training and medication; subacromial impingement is usually treated conservatively with physiotherapy, rehabilitation training, medication, closed treatment, etc.; rotator cuff injury requires surgery to sew up the rotator cuff to prevent further tearing of the rotator cuff.