There are several reasons for pain on both sides of the shoulder and neck: First, it is caused by cervical spondylosis, once suffering from cervical spondylosis, the patient will often have local nerve compression symptoms, then there will be muscle pain on both sides of the neck and shoulder area, especially after long-term reading or neck force will make this pain worse. Second, the pain on both sides of the shoulder and neck may be caused by diseases such as heavy colds, generally after a serious cold, due to the role of viral toxins will lead to pain in the shoulder and neck muscles, neck muscle pain is often accompanied by swollen lymph nodes in the neck phenomenon, this situation can be diagnosed through blood tests. Thirdly, shoulder and neck pain may also be caused by a fallen pillow, trauma, etc. This condition has a clear history of trauma and is not difficult to make a diagnosis.