Right Angle Shoulder is medically known as Subscapularis Rotation Syndrome. This abnormal body posture is caused by the incorrect position of the scapula. Right angle shoulder is not necessarily a pathological sign, but if excessive pursuit of right angle shoulder may produce harm, such as affecting the stability of the shoulder joint, affect breathing, cause shoulder and neck pain. 1. Affecting the stability of the shoulder joint: it is easy to cause more injuries. In the state of right-angle shoulder, the lowering of the clavicle position will cause the position of the scapula to fall, and the space of the interspace under the acromion will decrease, and the head of the humerus is easy to be squeezed with the interspace tissues, resulting in injuries. 2. Impact on breathing: the right angle shoulder may compress the thorax, resulting in a shorter neck, which in turn affects breathing and causes breathing difficulties, resulting in chest tightness, shortness of breath, and the feeling of breathlessness. 3. Causing shoulder and neck pain: the upper part of the trapezius muscle is overstretched due to the sinking of the shoulder blade, causing the trapezius muscle to be thick, resulting in shoulder and neck pain. If you have shoulder discomfort, it is recommended to consult a doctor in time and have standardized treatment under the guidance of a professional doctor.