Many obese patients, because of high weight lead to various diseases, among which hypertension is one of the common diseases. Here are some of the dangers of hypertension. Since hypertension is a comprehensive disease, it may cause other complications, most notably damage to the heart, blood vessels, brain, kidneys and other organs. The heart and blood vessels are the most damaged by hypertension. Atherosclerosis occurs in the coronary arteries, at which point the coronary arteries narrow, reducing the blood supply to the heart muscle. The vast majority of patients with coronary heart disease have a history of hypertension. In recent years, the incidence of coronary heart disease caused by hypertension has increased significantly. Although effective treatment can prevent and reduce its complications. However, it cannot reduce the incidence of coronary heart disease, the reason is that once coronary atherosclerosis occurs, its lesions are irreversible. Therefore, people often refer to hypertension and coronary heart disease as a pair of “contracted sisters”. When high blood pressure affects the heart, it will change the structure and function of the heart, and the long-term elevation of blood pressure will increase the burden on the heart, forming hypertensive heart disease. Hypertensive heart disease occurs after several years or more than ten years of high blood pressure. In the initial stage, there are no obvious symptoms other than occasional palpitations or shortness of breath. At the onset, the symptoms of left heart failure may appear, palpitation, shortness of breath, cough, sometimes with blood in the sputum, and in severe cases, pulmonary edema occurs. Cerebrovascular disease caused by hypertension is also a hidden killer lurking in the body. China’s elderly cause of death, cerebrovascular disease ranks first. Mainly from hypertension, followed by atherosclerosis. Hypertension mainly affects the cerebral arterial blood vessels. Patients bear the risk of cerebral hemorrhage, hypertensive encephalopathy and lacunar infarction for a long time. In turn, cerebral hemorrhage is the most common complication of advanced hypertensive disease. The death rate is generally high, and even the survivors are left with sequelae such as hemiplegia or aphasia. Therefore, the key to preventing cerebral hemorrhage is to control blood pressure effectively. Hypertension is also harmful to the kidneys. In addition to the inflammation and bacterial infection caused by allergic reaction, the more common clinical disease is hypertension. Kidney disease caused by hypertension requires a long process. The symptoms at the beginning of the period will be increased nocturia, polyuria, thirst, drinking, and low specific gravity of urine. When it develops further, urine output decreases significantly, generalized edema, electrolyte disorders and acid-base balance imbalance occur. In severe cases, renal insufficiency will occur or develop into uremia. Moreover, the treatment is still a big problem in the world medicine. The harm of hypertension to the kidney is silent, and it must draw great attention from people. Hypertension is harmful to the fundus of the eye. In the early stage of hypertension, fundus examination is mostly normal. When hypertension develops to a certain degree, at this time can cause patients’ visual impairment, such as blurred vision, distorted or smaller vision, and so on. It is recommended that patients with long-term hypertension need to have their intraocular pressure tested regularly. In addition to heredity, most hypertensive patients are caused by obesity. However, patients are more likely to think that obesity is a pathology rather than a disease. This leads many hypertensive patients to control their blood pressure and take medication on a regular basis, while ignoring the underlying cause. High blood viscosity caused by obesity is also an important reason for hypertension to cause disease. We hope that our readers will control their weight within a healthy range while taking care of their health. In this way the condition of high blood pressure will be effectively improved.