High blood pressure in the 20s has two clinical causes, as follows: 1, secondary to some disease, such as renal disease renal insufficiency, congenital renal vascular stenosis, some secondary to endocrine system problems, such as pheochromocytoma, primary aldosteronism, cortisolism, so endocrine system diseases and kidney disease can cause high blood pressure in young people in their 20s; 2, and genetic related, for example, parents have hypertension, or grandparents, grandma, grandma, grandpa have hypertension. For example, parents have high blood pressure, or grandpa, grandma, grandma, grandpa have high blood pressure, that is, primary hypertension, but the majority of primary hypertension after the age of 40, clinically if the 20-something young people occur hypertension, must find the cause, rather than directly judge no problem, with antihypertensive drugs can be pressed down, only to exclude all the above secondary to the causes of certain diseases, before considering primary Hypertension, primary hypertension patients to exercise, control diet, plus drug treatment can be.