If the diastolic blood pressure exceeds 90 mmHg, hypertension should also be considered. Patients with a high diastolic blood pressure who do not actively undergo hypotensive treatment can suffer long-term damage to target organs such as the heart, brain, and kidneys, as well as severe hypertensive complications. For patients with high diastolic blood pressure, it is also necessary to adopt effective lifestyle adjustments and choose clinically frontline antihypertensive drugs for long-term treatment. Only by effectively controlling elevated diastolic pressure in the long term can severe target organ damage and hypertensive complications be avoided, thus improving the clinical prognosis for patients with hypertension.