If the neck is tired and heavy, the following causes are common: First, drop pillow: during the process of sleep, the neck muscles are continuously stretched, acute spasm will occur, which leads to tension in the neck muscles, the patient will have a sense of neck fatigue, heaviness, when pressing the local, the pain symptoms increase, the cervical spine range of motion will also be affected. Second, cervical spondylosis: there will also be cervical strain and heaviness, mainly because the physiological curvature of the cervical spine has changed, the cervical ligaments and muscles have produced serious strain, and the intervertebral discs will also degenerate and irritate the nerves, which, through these comprehensive factors, eventually lead to the above symptoms in patients with cervical spondylosis. Therefore, if fatigue and heaviness appear in the neck, timely diagnosis and treatment are necessary to achieve rapid relief of clinical symptoms, otherwise the symptoms will continue to worsen, which will seriously affect the patient’s daily life and work.