Patients with bad cervical spine can not sleep without pillows. If this kind of patients do not pillow, often may cause the following adverse effects: 1, it is possible to make the physiological curvature of the cervical spine become more straight. If the patient does not pillow for a long time, it is possible to find the physiological curvature of the cervical spine straightened when the plain film is reviewed again, and there is osteophytes around the cervical spine. 2, there may be muscle spasm around the cervical spine. The cervical vertebrae are suspended for a long time due to the absence of a pillow, which may cause the muscles around the cervical vertebrae to remain tense for a long time, thus producing spasm, and the patient will often feel very stiff and uncomfortable around the neck after waking up. 3. It may lead to dizziness of the head. There are many patients, especially those with high blood pressure, who tend to find their heads very swollen in the process of lying down after not pillowing, which is often not conducive to the recovery of this type of disease. Therefore, patients with bad cervical spine is the need for pillows, and to pillow the right pillow under the guidance of a doctor.