Hypertension at the age of 13 is childhood hypertension. If there is a mild to moderate increase in blood pressure, usually without obvious clinical symptoms, it is considered to be related to obesity and may not require pharmacological treatment, and lifestyle interventions are usually given. If the blood pressure is still elevated after lifestyle intervention, or if there is a sudden and significant increase in blood pressure, the possibility of secondary hypertension should be considered. If renal hypertension is treated with antihypertensive drugs, first of all, a small dose of an antihypertensive drug should be given, such as an angiotensin-converting enzyme inhibitor, commonly used in clinical practice, such as lortensin or angiotensin receptor antagonists, such as telmisartan or valsartan, or a calcium antagonist, such as loxoprostone or bexin. If one antihypertensive drug is not satisfactory, a combination of two or more can be considered, and diuretics can also be used to treat hypertension in children.