Suddenly high blood pressure is divided into two types of cases: one is a physiological increase in blood pressure, such as emotional excitement, after strenuous exercise blood pressure rise. The other is a pathological increase in blood pressure, including primary hypertension, secondary hypertension, occult hypertension, etc. The other is a pathological increase in blood pressure, including primary hypertension, secondary hypertension, occult hypertension, etc. Sudden increases in blood pressure can be seen in normal individuals or in patients with hypertension under treatment. Generally, three measurements of blood pressure on non-same day with both systolic blood pressure ≥ 140 and/or diastolic blood pressure ≥ 90 mmHg are considered as hypertension. Found suddenly high blood pressure, may also be related to the following influencing factors: 1, not properly measured blood pressure: the correct measurement method is to measure blood pressure half an hour before the need to ban smoking, ban coffee, empty the bladder, quiet rest for at least 10 minutes or more. The upper limb is bare and stretched out and abducted, the air cuff is at the same level as the heart, its lower edge is about 2.5 cm above the elbow fossa, and the center of the air cuff is located on the surface of the brachial artery. If you do not measure your blood pressure correctly, you may also experience elevated blood pressure. 2, not adhere to the standardized medication: antihypertensive drugs need to be taken continuously for a long time and will not become addicted or dependent. Now patients have some misconceptions that they can stop taking medication when their blood pressure is normal and take it again when their blood pressure rises. This irregular medication can lead to big ups and downs in blood pressure. Therefore antihypertensive drugs need to be taken continuously and regularly in order to lower blood pressure smoothly. 3, seasonal changes affect blood pressure: hot weather when the human body vasodilatation and skin sweating, vascular tone decreased along with the effective blood volume decreased, can make most people in the summer to varying degrees of blood pressure drop; when winter comes, blood pressure will have a certain degree of increase. Therefore, when the seasons change, patients with hypertension should monitor blood pressure changes and fine-tune the dose and type of antihypertensive drugs taken under the guidance of a doctor. 4, emotional changes affect blood pressure: some people in the office to measure blood pressure will be very high, home after repeated measurements of blood pressure is normal, this is “white coat hypertension”, relax the nervous mood, do not need special treatment; but when long-term in the overwork, tension, excessive stress state, blood pressure may continue to rise, the need for timely consultation, the current Psychosomatic factors induced hypertension is getting more and more attention. 5, secondary hypertension caused by a sudden rise in blood pressure: common secondary hypertension causes are renal hypertension, renal vascular hypertension, primary aldosteronism, pheochromocytoma, Cushing’s syndrome, obstructive sleep apnea hypoventilation syndrome, acromegaly, aortic constriction, drug hypertension, true erythrocytosis, etc., need doctors to differential diagnosis for you. A sudden increase in blood pressure can induce coronary heart disease, heart failure, renal failure, cerebral hemorrhage, cerebral infarction, aortic coarct and other malignant events, with extremely high disability and mortality rates. Patients with sudden or repeated increases in blood pressure or mild increases in blood pressure accompanied by chest tightness and pain, dizziness and nausea are advised to go to the hospital for professional treatment in a timely manner.