There are many reasons why a patient with hypertension may have low blood pressure: 1. The dose of antihypertensive medication may be too high, resulting in a low blood pressure. 2. If you continue to take long-term treatment of antihypertensive drugs after entering the summer, some patients may have low blood pressure and need to adjust the use of antihypertensive drugs in a timely manner. 3. The blood volume drops, then we must actively treat the disease that caused the blood pressure drop.