Adolescent hypertension should be considered a renal and adrenal problem, and renal function and renal vascular ultrasound should be done; if ruled out, thyroid and cardiovascular tests can also be done. Adolescent hypertension needs to exclude renal causes, including renal parenchymal and renal vascular factors. Such as acute glomerulonephritis, renal artery stenosis and so on. It can be judged by urine routine, renal function tests, renal vascular ultrasound and other aids. Glomerulonephritis urine test can find hematuria, urine protein positive, if necessary, also need to renal pathology biopsy to clarify the diagnosis and guide the treatment. Renal vascular stenosis can be renal artery ultrasound, radionuclide nephrogram auxiliary examination, if necessary, renal arteriography to clearly diagnose, determine the location of stenosis. Adolescent hypertension also needs to exclude adrenal factors, such as primary aldosteronism, pheochromocytoma, cortisolism and so on. Laboratory tests such as sodium and potassium electrolyte measurements, aldosterone and renin activity tests, blood and urine catecholamines and metabolites, and urinary 17-hydroxysteroid levels, as well as imaging tests such as adrenal CT and MRI are needed to make a definitive diagnosis. If the above factors are excluded, some thyroid, cardiovascular and cranial related tests should also be done to check for related diseases, such as thyroid function, thyroid ultrasound, cardiovascular ultrasound and cranial CT.