Hypertension is an increase in blood pressure due to the diastolic function of blood vessels and volume loading, etc. The cause of primary hypertension is still not very clear, except for secondary hypertension, which has a clear cause. Most primary hypertension is associated with genetic factors, age, mental factors, poor lifestyle habits, and medications, all of which may cause primary hypertension. The current diagnostic criteria for hypertension in China is a monitored blood pressure greater than 140/90 mmHg in adults in a quiet state, and as long as one of these criteria is met, it is considered hypertension. Patients with hypertension should promptly correct the cause of the disease, such as improving poor lifestyle habits, quitting smoking, limiting alcohol and losing weight. Patients with secondary hypertension should identify the cause of secondary hypertension, such as tumors, adrenal nodules and other diseases, correct the cause, and provide antihypertensive treatment.