High pressure 170 low pressure 100, refers to the blood pressure in 170/100mmHg, that is, systolic blood pressure 170mmHg, diastolic blood pressure 100mmHg, if the long-term blood pressure in the 170/100mmHg, belongs to the category of grade 2 hypertension, for moderate hypertension is more dangerous. Normal systolic blood pressure is 90~140mmHg, diastolic blood pressure is 60~90mmHg, hypertension can be divided into 1 level (mild hypertension) refers to the systolic blood pressure 140~159mmHg, diastolic blood pressure 90~99mmHg; 2 level (moderate hypertension) refers to the systolic blood pressure 160~179mmHg, diastolic blood pressure 100~109mmHg; 3 level (severe hypertension) refers to the systolic blood pressure ≥ 180mmHg, diastolic blood pressure 100~109mmHg. Grade 3 (severe hypertension) means systolic blood pressure ≥180mmHg and diastolic blood pressure ≥110mmHg. Therefore, a blood pressure of 170/100mmHg is considered to be moderate hypertension, which is more dangerous. If the blood pressure is only occasionally 170/100mmHg, you can adjust your diet and work routine to improve your blood pressure, avoid smoking and drinking, stay up late, pay attention to a low-salt diet, eat less fatty meats, animal offal and other high-fat foods, and moderate physical exercise. If the patient’s blood pressure is at 170/100mmHg for a long time, it can be diagnosed as moderate hypertension, then not only need to adjust the diet and work and rest in a timely manner, but also need to use antihypertensive drugs under the guidance of the doctor, such as compound preparation: Irbesartan, hydrochlorothiazide tablets, and so on. If hypertensive patients do not early antihypertensive treatment, it will be very dangerous, there may be acute coronary syndrome, acute heart failure, acute cerebral infarction, acute cerebral hemorrhage, etc., so you need to pay close attention.