The feeling of numbness and tightness at the top of the head may be related to the vegetative nerve dysfunction, or it may be caused by tension headache or high blood pressure. 1. Plant nerve dysfunction: Long-term mental stress, long-term emotional tension, anxiety, or often excessive late-night sleep, poor sleep quality, insufficient sleep time, are prone to plant nerve dysfunction, which can be manifested as a numb tightening sensation in the top of the head. 2. Tension headache: the cause is more complex, it is still unclear, most considerations may be related to genetic factors, mental factors, usually due to long-term stress, mental tension or sleep disorders and other reasons. When the tension headache attack, it can be manifested as a numb tightening feeling on the top of the head. 3. Hypertension: hypertensive patients such as failure to take regular antihypertensive drugs, or too much emotional tension, are prone to cause blood pressure fluctuations, which can be manifested in the top of the head numbness and tightness of the sensation, mainly due to the elevation of blood pressure caused by increased pressure inside the cerebral blood vessels, and the formation of constant stimulation of the meninges caused by. The feeling of numbness and tightness in the top of the head may also have other reasons. If this situation continues to get no better, we must pay attention to, as soon as possible to seek medical attention, after a clear diagnosis, by the doctor’s guidance and timely treatment, to prevent delays in the condition and serious consequences.