Malignant hypertension is an acute and serious condition that predisposes to damage of various organs. About 1%-5% of patients with moderate to severe hypertension can develop malignant hypertension. The pathogenesis is not fully understood and may be related to untimely treatment or inappropriate treatment. Malignant hypertension is less common, mostly in young adults, with an acute onset, sustained diastolic blood pressure (low pressure) ≥130 mmHg with headache, blurred vision, fundus bleeding, exudation or optic disc edema, and a dramatic decrease in renal function with persistent proteinuria, hematuria and tubuluria. Often due to improper diet and medication, some hypertensive diseases do not pay attention to control the diet after the disease, such as drinking alcohol, smoking, etc.. Secondly, obese patients are prone to malignant hypertension, and usually the degree of obesity is in a balanced relationship with elevated blood pressure. And the common cause is mostly in extreme fatigue, cold stimulation, excessive nervous tension and endocrine disorders during menopause, etc. prone to this type of hypertension. When malignant hypertension appears, you should seek medical attention promptly, bring diastolic blood pressure down to a safer level quickly, and take gradual controlled blood pressure reduction, but also to avoid the rapid will be too low level, which will make important organs insufficient blood supply, leading to deterioration of heart, brain and kidney function, there may be shock and other dangers. Most of the malignant hypertension is converted from common hypertension, so it is necessary to use antihypertensive drugs and pay attention to lifestyle under the guidance of a doctor when the patient is diagnosed with hypertension in order to reduce the incidence of malignant hypertension.