Mild hypertension does not have obvious symptoms, but severe hypertension can lead to the following symptoms: 1. dizziness, headache, vertigo, numbness of the limbs, impaired movement of the limbs, and tinnitus if it affects the nervous system. 2. If hypertensive crisis is reached, there will also be blurred vision, blurred vision, and transient loss of consciousness.2. When the cardiovascular system is threatened, there will be chest tightness, shortness of breath, weakness, pain in the precordial region, and difficulty in breathing.3. When the kidney function is affected, there will be symptoms of oliguria and anuria. Hypertension will mainly cause the corresponding target organ insufficiency, the main damage to the target organs are heart, brain and kidney, will appear stroke, cerebrovascular accident, angina pectoris, myocardial infarction, acute or chronic renal insufficiency.