Drinking more water cannot lower blood pressure. 1. Drinking water can’t lower the role of blood pressure, but only supplement the body’s lack of water. 2. Hypertension is divided into two categories: primary hypertension and secondary hypertension. Primary hypertension treatment, first of all, to improve life behavior, such as obese patients to reduce body weight, reduce sodium intake, reduce fat intake, limit alcohol consumption, increase exercise, and so on, followed by oral antihypertensive drugs, such as nifedipine. 3. Secondary hypertension is mostly caused by other diseases and requires timely treatment of related diseases. Therefore, using the method of drinking more water can not play a clear role in lowering blood pressure. In order to reduce blood pressure, you should go to the hospital and have your blood pressure retested by a doctor as well as other relevant examinations. The doctor will choose the appropriate medication according to the level of blood pressure and whether there are other complications.