Low blood pressure does not normally result in bradycardia. Compensatory changes occur in the body when blood pressure is low, the main change being an increase in heart rate. By increasing the heart rate when the blood pressure is low, the body is able to increase blood circulation and compensate for the lack of blood supply caused by bradycardia. In some cases, low blood pressure may not be accompanied by a change in heart rate, which is physiologic, such as in essential hypotension. Patients with low blood pressure who have sinus node lesions may also have bradycardia, but it is not the low blood pressure itself that slows down the heart rate; it is the sinus node lesions that change the heart rate. Patients with low blood pressure should actively replenish blood volume and raise the blood pressure level, and if accompanied by bradycardia with obvious symptoms, they should promptly go to the hospital for treatment under the guidance of physicians.