Some patients with hypertension may have no symptoms or only mild symptoms in the early stage. The common symptoms include dizziness, headache, stiffness in the neck, fatigue, and palpitations. Blood pressure may only rise after physical exertion, mental stress, or emotional fluctuations and return to normal after rest. As the disease progresses, blood pressure remains significantly elevated, causing damage to various target organs and leading to complications. Gradually, various symptoms may appear. Common clinical symptoms include headache, dizziness, poor concentration, memory loss, numbness in the limbs, frequent urination at night, palpitations, chest tightness, and fatigue.