Most patients with high blood pressure can consult the cardiovascular medicine department, while some secondary hypertension patients need to consult the endocrinology department and nephrology department, and patients with hypertensive emergencies need to go to the emergency room. Most of the patients with high blood pressure belong to primary hypertension, and need to go to the cardiovascular medicine clinic for consultation. The doctor will choose the appropriate examination such as dynamic blood pressure monitoring, 2D echocardiography and so on according to the situation of the blood pressure, and then give the plan for lowering the blood pressure. Some patients have elevated blood pressure due to secondary hypertension caused by some diseases, such as primary aldosteronism, cushing’s disease and other endocrine diseases can also cause elevated blood pressure and need to go to endocrinology clinic, renal artery stenosis, renal insufficiency and other renal diseases need to go to nephrology clinic. If the blood pressure is found to be extremely elevated, such as systolic blood pressure greater than 180mmhg or diastolic blood pressure greater than 120mmhg, the patient may have headache, nausea, vomiting and other symptoms, and need to go to the emergency room in time to lower the blood pressure to prevent accidents. In conclusion, if the patient is found to have elevated blood pressure, he or she can first go to the cardiovascular department, and if secondary hypertension caused by other diseases is found, he or she can be referred to the relevant departments under the guidance of the first doctor, and if the elevated blood pressure is obvious, he or she needs to go to the emergency room in a timely manner.