Sleeping up with neck and shoulder pain may be a case of drop pillow. The pillow is a class of diseases with very obvious characteristics, such patients do not have any symptoms in the neck and shoulder before sleep, and after waking up there will be obvious pain in the back of the neck and shoulder, and there is a very obvious stiffness, unfavorable movement. The common causes of these diseases are as follows: 1, the neck is cold during sleep, for example, the patient in sleep when the neck clothing is not enough or blowing directly against the cool wind, it may cause the muscles here to produce spasm, and then produce the pillow. 2, may be caused by bad posture, many patients in the sleep pillow is too high or have other bad sleeping posture, will also lead to the relevant