Objective To investigate the relationship and clinical significance between vascular endothelial function,blood pressure variability in patients with H-type hypertension. Methods Selected in patients with H-type hypertension as observation objects, the observation objects were divided into the vascular endothelial function normal group(H1 group),the endothelial mild to moderate dysfunction group(H2 group) and the endothelial severe dysfunction group(H3 group)according to the results of FMD. Use the noninvas...