Pain in the elbow and arm is most commonly caused by cervical spondylosis, especially localized nerve root compression, and patients may also experience numbness of the upper extremities, muscle atrophy, and limited mobility. The cause of cervical spondylosis is related to prolonged chronic strain. Unreasonable sitting posture and lifestyle can also induce the appearance of the disease. Cervical spondylosis includes nerve root type, vertebral artery type, sympathetic nerve type and mixed type. After diagnosis, the first option is physical therapy, which can include oral painkillers and nerve-nourishing medications, changing poor sitting postures, and localized massage or acupuncture to relieve pain and discomfort to a certain extent. Surgery can be used for severe cases of cervical spondylosis, but the risk of surgery is relatively high, and proper rest should be taken during the day.