Shoulder and back pain may be caused by physiological reasons such as long-term strain and cold stimulation, or it may be caused by pathological factors such as cervical spondylosis and visceral diseases. 1. Physiological reasons: people who often carry out heavy physical labor or often carry out sports training for the back of the shoulder, due to long-term strain may lead to micro-injury of the myofascia of the back of the shoulder, resulting in aseptic inflammation of the back of the shoulder, leading to symptoms of pain and soreness; the back of the shoulder is subjected to cold stimulation for a long period of time, which leads to the contraction of the local blood vessels and the accumulation of metabolic products, and the above mentioned symptoms may also occur. 2. Pathological factors: degenerative lesions in the cervical spine leading to cervical spondylosis may lead to osteophytes between vertebrae and herniated intervertebral discs, which may compress the spinal cord or spinal nerve roots, and may lead to pain in the back of the shoulder; when radiating pain occurs in internal organs, the above mentioned symptoms may also occur, such as angina pectoris, cholecystitis, and gallbladder stones. Shoulder and back pain may also have other causes, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.