If the long-term systolic blood pressure (not standardized medical terminology: upper pressure) 160mmHg, diastolic blood pressure (not standardized medical terminology: lower pressure) 100mmHg is a certain degree of danger, may cause a series of complications in the heart, brain, kidney and retina, and in serious cases, can be life-threatening. 1. Systolic blood pressure of 160mmHg, diastolic blood pressure of 100mmHg, according to China’s blood pressure classification and standards, is class 2 hypertension (moderate). 2. Heart complications: long-term hypertension may cause left ventricular hypertrophy and dilatation, resulting in hypertensive heart disease. Hypertensive heart disease can often be combined with coronary atherosclerosis and microangiopathy. 3. Brain complications: long-term hypertension prompts atherosclerosis of cerebral blood vessels, and the formation of atheromatous plaques can be complicated by the formation of cerebral thrombosis; long-term hypertension can also lead to ischemic degeneration of cerebral blood vessels and the formation of micro-aneurysms, and cerebral hemorrhage can occur once micro-aneurysms are ruptured. 4. Renal complications: long-term hypertension may cause chronic renal failure, especially when combined with diabetes. 5. Retinal complications: small retinal arteries may spasm in the early stage and sclerosis may occur with the progression of hypertension, and a sudden rise in blood pressure may lead to retinal blood seepage and hemorrhage. If the patient’s blood pressure is abnormal, he/she should go to the hospital in time to adjust the blood pressure scientifically to prevent complications.