The clinical symptoms of cervical spine physiological curvature straightening include the following: 1. Neck pain: cervical spine physiological curvature straightening is usually accompanied by neck muscle strain, and the patient will have clinical symptoms of neck pain. If the patient suffers from cervical disc herniation or cervical spondylosis, the pain will be more intense and can involve the upper limbs. 2. Restricted cervical movement: cervical curvature straightening, continuous spasm and tension in the neck muscles, cervical flexion and extension activities and rotation activities are restricted. 3. Cerebral blood supply insufficiency: cervical curvature straightening, the direction of the vertebral artery will also change significantly, and patients with cerebral blood supply insufficiency will show dizziness, nausea, chest tightness, panic, vision and hearing. Patients with cerebral insufficiency may experience dizziness, nausea, chest tightness, panic, loss of vision and hearing, and memory loss. Therefore, cervical spine physiological curvature straightening must be diagnosed and treated in a timely manner in order to achieve rapid relief of clinical symptoms and prevent aggravation of the disease.