High blood pressure at the age of 19 can be primary hypertension, but it is important to look for secondary causes and to exclude pseudohypertension. High blood pressure at the age of 19 can be primary hypertension, lack of physical activity, overweight body may be the main cause of the disease, some patients may have genetic factors. 19 year old high blood pressure should also pay attention to find secondary causes, such as adrenal disease pheochromocytoma, renal artery stenosis, renal disease, kidney-related disease is the main cause of secondary hypertension. At 19 years old, high blood pressure may also be pseudo-hypertension, we should pay attention to strengthen the monitoring of blood pressure, to remove the causes of elevated blood pressure, such as tension and anxiety. Young hypertensive patients should pay attention to strengthen the physical examination, and if necessary, go to the hospital to find the specific cause of elevated blood pressure, and under the guidance of the physician treatment.