Dizziness after waking up can be seen in the following cases: First, slight dizziness and blackness in front of the eyes after waking up suddenly, but it will get better soon afterwards. The blood is at a relatively low level when lying down, and the blood does not return quickly enough after getting up suddenly, thus causing a transient lack of blood supply to the brain and slight dizziness, which is physiological and can be seen in normal people. Second, mainly from pathological considerations, can be seen in otolithiasis or cervical spondylosis, otolithiasis is a sudden movement of the head due to a violent wake up, which induces the dislodgement of the otoliths in the ear causing dizziness, the symptoms are heavy, can have visual rotation, serious nausea, the duration of a few seconds to a few minutes can be relieved, when the head turns again to a specific position can be induced again, if necessary, can do otolith reset treatment. A small number of patients with cervical spondylosis can also induce dizziness when their heads are suddenly turned, but they mostly have a history of cervical spondylosis, which can be clarified with the help of imaging examinations.