High blood pressure in the middle of the night to be divided into two situations, as follows: 1, to look at the amount of activity during the day, if the daytime activity, very excited, nervous, this time there will be high blood pressure in the middle of the night, just need to carry out dynamic monitoring, such as high blood pressure in the middle of the night, a few more times. Then get up the next morning and measure it again, if the blood pressure returns to normal the next day, this time can be temporarily not to deal with it, temporarily ignore it; 2, no relationship with the activity, suddenly at night to measure the blood pressure is high, this time he may itself have high blood pressure, then we according to the diagnosis process of hypertension. In the case of not taking antihypertensive drugs, then non-same day to measure blood pressure three times, if all above this figure, this time can be diagnosed hypertension. In addition, the patient can also go to the hospital for ambulatory blood pressure monitoring, that is, carrying a box on the body, 24 hours to monitor blood pressure, and then look at the fluctuations in his blood pressure level. Blood pressure fluctuations if the blood pressure is fine during the day and particularly high at night, this is when you need to adjust your antihypertensive medication and try to take your antihypertensive medication at night before going to bed.