There is no obvious relationship between the subjective symptoms of hypertensive patients and the degree of increase in blood pressure. About half of the patients have no obvious symptoms, and the diagnosis of hypertension is only found during physical examinations or blood pressure checks for other diseases, and in a few cases the diagnosis of hypertension is made clear when complications of the heart, brain, kidneys and other organs occur. The common clinical manifestations of hypertensive patients include headache, which mostly occurs in the back of the head, especially during sleep, and may also include dizziness, head swelling, neck trigger sensation, tinnitus, blurred vision, forgetfulness, lack of concentration, insomnia, boredom, weakness, numbness of the limbs, and palpitations. With the long-term development of the disease, blood pressure rises significantly and continuously, and organic damage and dysfunction of brain, heart, kidney and fundus may occur, and corresponding clinical symptoms may appear. For example, in the case of concurrent cerebrovascular disease, dizziness, aphasia, and distortion of the corners of the mouth may occur in mild cases (but may gradually recover within minutes to days), and in severe cases, sudden limb hemiparesis, distortion of the corners of the mouth, vomiting, diarrhea, and coma. Heart involvement may lead to cardiac insufficiency, palpitations, chest tightness, shortness of breath after activity, and even paroxysmal dyspnea at night. Renal involvement may result in proteinuria, hematuria, polyuria, nocturia, etc.