Is blood pressure low in the morning and high in the evening normal?

People's blood pressure is not always the same, it will fluctuate with time. Under normal circumstances, blood pressure in the morning will be relatively high, blood pressure in the evening will be relatively low, therefore, blood pressure in the morning is lower than that in the evening is abnormal. Mostly seen in vegetative nervous dysfunction, atherosclerosis, adrenal pheochromocytoma and other diseases.