The patient’s pillow causes the following: 1, if the patient is particularly tense when sleeping, such as mental stress is particularly high, or often nightmares, easily lead to tension in the neck muscles, so that the patient in the second day to get a pillow. 2, the patient sleeps on a pillow if it is not suitable, also easy to cause the patient to pillow, such as the patient sleeps on a particularly narrow, particularly high, particularly short pillow, are likely to cause the patient easy to develop. 3.If the patient sleeps at night, resulting in a cold neck, it is also very easy to make it fall off the pillow, such as the patient’s neck has been blown by the wind, or no quilt cover, it is easy to produce such a lesion. 4.If the patient has serious cervical spondylosis, during the onset of the disease, it is also easy to fall off the pillow. 5.If the patient sleeps at night, often have some bad posture, like a long time to take The patient is also prone to the prone position, also easy to cause the pillow.