The need for medication for low pressure above 90mmHg depends on the specific situation, some do not need to take medication, some need to take medication, as follows: 1, do not need to take medication: if the patient through lifestyle regulation, can make low pressure back to normal levels, can temporarily do not take antihypertensive treatment drugs, but need to regularly monitor blood pressure levels, while maintaining good lifestyle habits for a long time. If through lifestyle regulation, still can not effectively make the low pressure back to normal, this situation needs to start taking long-term blood pressure lowering drugs to control the blood pressure, to control the blood pressure in the normal range for a long time. 2, need to take drugs: if the low pressure of 90mmHg or more patients, accompanied by heart failure, coronary heart disease, diabetes or renal insufficiency, must take long-term antihypertensive treatment drugs, so that the low pressure control at 80mmHg. Keep the low pressure under 80mmHg. It is recommended that patients with low pressure above 90mmHg should go to the hospital in time and be given standardized treatment under the guidance of a doctor.