Symptoms of hypertension vary from person to person. There may be no symptoms or obvious symptoms in the early stage, and blood pressure will rise only after fatigue, mental tension and emotional fluctuation, and return to normal after rest. With the prolongation of the course of disease, blood pressure increases obviously and continuously, and various symptoms will appear gradually. This is called progressive hypertension. The common clinical symptoms of progressive hypertension include headache, dizziness, inattention, memory loss, numbness of limbs, nocturia, palpitation, chest tightness, fatigue and so on. Some symptoms are not directly caused by high blood pressure, but by higher nervous dysfunction. Dizziness and headache are the most common brain symptoms of hypertension, and most patients show persistent dullness and discomfort. Often dizziness will hinder thinking, reduce work efficiency, lack of concentration and memory loss, especially in the near future. Long-term hypertension leads to insufficient blood supply to the brain, which is also one of the reasons for dizziness. Some patients with long-term hypertension have adapted to higher blood pressure. When taking antihypertensive drugs to reduce blood pressure to normal, you will also feel dizzy because of the inadaptability of cerebrovascular regulation. When blood pressure drops too low, sometimes I feel dizzy, which is related to insufficient blood supply to the brain. Headache can be manifested as persistent simple pain or pulsating swelling pain, and sometimes even cause nausea and vomiting. Most of them are caused by the strong reflex contraction of blood vessels in the head caused by the sudden increase of blood pressure, and the pain site can be in the temple or the back of the head. Chest tightness and palpitation indicate that the patient's heart is affected by high blood pressure. Long-term high blood pressure will cause left ventricular dilatation or myocardial hypertrophy, increase the burden on the heart, and then myocardial ischemia and arrhythmia will occur, and patients will feel chest tightness and palpitation. In addition, due to brain nerve dysfunction, symptoms such as irritability, palpitation, insomnia and irritability may occur; Systemic arteriolar spasm and insufficient blood supply to limb muscles can lead to numbness of limbs and tension and soreness of neck and back muscles; It turns out that patients with vascular defect of nasal septum are prone to epistaxis. When blood pressure suddenly rises to a certain extent, there will even be severe symptoms such as headache, vomiting, palpitation and dizziness, and in severe cases, there will be confusion and convulsions. This belongs to acute hypertension and hypertensive critical illness, which often causes serious damage and pathological changes of heart, brain, kidney and other organs in a short time, such as stroke, myocardial infarction, renal failure and so on. Therefore, once the above symptoms appear, we should check and treat them as soon as possible to prevent target organ damage and hypertensive crisis or hypertensive encephalopathy. Many patients with hypertension, whether early or severe, have no conscious symptoms, and it is too late to find out when their blood pressure is measured after a stroke or other diseases. Therefore, regular physical examination to diagnose and treat hypertension at an early stage is very important for maintaining health. In addition, there is no consistent relationship between symptoms and elevated blood pressure. Patients with hypertension can't estimate blood pressure and decide the dosage of antihypertensive drugs by the severity of symptoms.