默姐，去医生那里做一个鉴别性诊断，然后对症治疗； 譬如：肩周炎可能性最大，但最好rule out肩袖损伤，肱二头肌长头肌肌腱炎，钙化肌腱炎。
1，看看是不是肩周炎。肩周炎发生的原因有很多。软组织退行病变，外力的承受能力减弱：包括肌肉，肌腱和关节囊外围的慢性炎症，俗称50肩。 肩部急性挫伤，牵拉伤后因治疗不当等都会加剧肩周炎。
但具体哪种情况要到医生那里做鉴别诊断。
（Scapulohumeral Periarthritis
）， It occurs primarily in people above fifty years old and more often in females than in males. It is marked by pain and limited abduction, outward rotation, backward extension, and raising of the shoulder joint. The pain may radiate to the neck and upper arm. The pain also lessens during the day and worsens at night. In severe cases the shoulder joint may become completely frozen with resulting atrophy of the shoulder muscles. 。 严重时不能梳头，洗面和扣腰带。有时夜间因翻身移动肩部而痛醒。
2，有可能是肩袖撕裂（rotator cuff tear; RCT）四组肌肉围绕着肩关节，肌肉与关节的tendon有时会strain。肩关节突然外展上举或扭伤会引起RCT。
3，calcific tendonitis （钙化肌腱炎）多见于30－50岁的运动人群。
