The latest criteria for grading and grouping of hypertension means that hypertension can be classified into 3 grades: grade 1 hypertension is systolic blood pressure of 140-159 mmHg and diastolic blood pressure of 90-99 mmHg; grade 2 hypertension is systolic blood pressure of 160-179 mmHg and diastolic blood pressure of 100-109 mmHg; grade 3 hypertension is systolic blood pressure of ≥180 mmHg and diastolic blood pressure of ≥110 mmHg. The latest grouping criteria for hypertension means that at grade 1 hypertension if there are no risk factors or medical history, it can be classified as a low risk group; with 1-2 risk factors, it can be called an intermediate risk group; greater than or equal to 3 risk factors or damage to target organs is called a high risk group. If grade 1 hypertension is also combined with clinical complications and a history of diabetes mellitus, it is called a very high risk group. grade 2 hypertension at 1-2 risk factors can be called an intermediate risk group; greater than or equal to 3 other risk factors or damage to the target organ is called a high risk group. If there are clinical complications and a history of diabetes mellitus, the group is called very high risk. grade 3 hypertension is called high risk when there are no risk factors or history of any disease, and very high risk when there are more than 1-2 risk factors or more than or equal to 3 target organ damage, and a history of clinical complications and diabetes mellitus.