A blood pressure of 160/100 mmHg is dangerous. In the short term, it may not cause serious consequences, if the blood pressure is not controlled for a long time, it is possible to cause damage to target organs such as the heart, brain and kidneys, if there is a cerebral vascular malformation, or the application of anticoagulant, antiplatelet and other medications, there is also a risk of cerebral hemorrhage. 160/100mmHg blood pressure, in the short term, may not cause serious damage to the organs, many patients even have no symptoms, timely access to medical care to control blood pressure, the possibility of serious consequences is unlikely. However, if this blood pressure is not controlled for a long time, it may cause damage to the endothelium of blood vessels, atherosclerosis, myocardial ischemia or even myocardial infarction, cerebral infarction, renal impairment, and it may also lead to vascular sclerosis of the fundus of the eye, hemorrhage, and even insomnia. These complications caused by hypertension are dangerous. If the patient has cerebral vascular malformation, 160/100mmHg, there is an increased risk of cerebral hemorrhage. The chance of a bleeding event is somewhat greater when anticoagulant and antiplatelet drugs are applied due to other diseases. Blood pressure 160/100mmHg is also at risk. In case of high blood pressure, it is important to visit the cardiology department formally and take formal antihypertensive treatment according to the doctor’s instructions to avoid any danger.