Head down on the symptoms of vertigo, the main consideration of the following two aspects of the problem: 1, to consider is caused by otolithosis, because the balance of the receptors within the otolith particles off, when the head in a particular position, off the otolith particles will stimulate the cell membranes of the semicircular canals, which will lead to vertigo symptoms, accompanied by the appearance of characteristic inflammation, the patient to look at the visual rotations, the duration of time generally It will not last more than a minute, and can be treated by doing manipulative repositioning; 2, the patient’s vertigo when he lowers his head should be considered to be related to cervical spondylosis, when the patient lowers his head, the vertebral arteries may be oppressed, and vertigo symptoms may easily occur. Patients may also be accompanied by stiffness, pain, discomfort or numbness in the neck.