Grade 3 hypertension is generally not self-restoring and requires active medication to lower the blood pressure to the normal range. The duration of effective medication control varies from person to person, ranging from a few hours to a lifetime. Grade 3 hypertension is a significant and severe elevation of blood pressure, meaning that systolic blood pressure ≥180 mmHg and/or diastolic blood pressure ≥110 mmHg, which is generally not able to return to the normal range on its own, and often requires active medication control. In clinical practice, the range of control for elevated blood pressure, the choice of medication, and the time required to return to normal blood pressure vary from person to person. For example, in patients with tertiary hypertension with comorbidities such as acute cerebral hemorrhage, intravenous antihypertensive medications such as uradil and labetalol are usually required to control blood pressure to the normal range within a few hours. However, for Grade 3 hypertensive patients without comorbidities such as diabetes mellitus, hypertensive nephropathy and other complications, and without obvious clinical symptoms such as dizziness, headache, etc., the effective control time of their blood pressure can be significantly prolonged, and it is sufficient to reduce their blood pressure to the normal range within a few weeks, or even a longer period of time. And in the clinic, some patients may not be able to control their blood pressure in the normal range even after active drug treatment, for example, for secondary hypertension caused by renal artery stenosis and other diseases, if the primary disease cannot be corrected, the effect of the drug on the control of blood pressure is often poor, and can not even be reduced to the normal range for the rest of their lives. If you find that your blood pressure is abnormally high, you should consult a doctor in a timely manner and follow the doctor’s instructions to actively treat and control your blood pressure to avoid affecting your health.