Pain under the right shoulder may be caused by trauma, fasciitis, cervical spondylosis and other diseases. 1. Trauma: due to trauma and other factors acting on the lower part of the patient’s right shoulder, resulting in scapula fracture, muscle and surrounding soft tissue injury, the patient may have pain under the right shoulder. 2. Fasciitis: due to long-term shoulder labor and other reasons caused by the patient’s local muscle, fascia of the aseptic inflammation, the patient may appear right shoulder pain. 3. Cervical spondylosis: due to the straightening of cervical curvature, cervical disc herniation and other factors that stimulate or compress the local nerves, the patient may have pain under the right shoulder, and some of the patients are accompanied by numbness of the upper limbs, pain, and activity limitation and other symptoms. 4. Other diseases: such as gallbladder stones, cholecystitis and other diseases, the patient in addition to the primary area of pain, there will be pain under the right shoulder. There may be other reasons for the pain under the right shoulder, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.