Blood pressure rises in the afternoon include a variety of factors, for the type of blood pressure fluctuations, the usual fluctuations belong to the arytenoid blood pressure, blood pressure shows two peaks, that is, 6-8 am and 4-6 pm blood pressure rise phenomenon, normal people as well as patients with hypertension can exist, this is one of the causes of blood pressure rises in the afternoon, related to the type of blood pressure fluctuations. The rise in blood pressure in the afternoon may be due to the fact that the antihypertensive medication taken by hypertensive patients in the morning is a short-acting antihypertensive drug, and its antihypertensive effect does not cover 24 hours, so the rise in blood pressure occurs in the afternoon. It is recommended that hypertensive patients undergo 24-hour ambulatory blood pressure monitoring to clarify the type of blood pressure fluctuation and adjust the method, dose and time of antihypertensive drugs.