People often complain of tingling in the head after waking up, sometimes accompanied by headache and dizziness and numbness in the fingers. The reasons for this are the following possible diseases. 1, cervical spondylosis Cervical spondylosis is one of the common degenerative diseases in middle-aged and elderly people, which can cause a variety of symptoms. If the cervical spine lesion segment is high, coupled with maintaining a certain posture for a long time during sleep, it will lead to pressure on the nerve roots of the upper neck and the symptoms of head numbness. Therefore, people with the above symptoms are recommended to go to the hospital to check the cervical spine film to make a clear diagnosis. 2, hypertension With the accelerated pace of life and increased mental stress, the incidence of hypertension is increasing day by day. Generally speaking, human blood pressure has an obvious diurnal fluctuation pattern, that is, “two peaks and a valley”, generally in the evening blood pressure begins to fall, midnight down to the lowest, early in the morning and after the afternoon there are two peaks. Therefore, if you have a tingling sensation in your head after waking up, you must measure your blood pressure, and it is likely to be significantly elevated. 3, cerebral ischemia Middle-aged and elderly people mostly start to develop cerebral atherosclerosis, especially those with multiple cardiovascular and cerebrovascular risk factors. As the cerebral blood circulation is slow during sleep, especially after waking up, it will cause insufficient blood supply to the cerebral vessels and show the symptoms of numbness in the head. Therefore, it is recommended to go to the hospital for the corresponding cerebrovascular evaluation and receive regular secondary prevention treatment. In short, middle-aged and elderly people who have a numbness in the head after waking up should not take it lightly to avoid delaying the disease.