To determine whether you have secondary hypertension, you can go through physical examination, laboratory examination, chest X-ray examination and so on. 1. Physical examination: Secondary hypertension refers to high blood pressure not caused by atherosclerosis, which can be lowered after active treatment of related diseases. If secondary hypertension is suspected, physical examination will reveal elevated blood pressure, vascular murmurs during abdominal auscultation, and retinal arterial degeneration, reflections, and oozing in the fundus during fundus examination. 2. Laboratory examination: Secondary hypertension can also be detected by routine blood, urine and kidney function tests. If hemolytic anemia, abnormal red blood cells and increased blood viscosity are found in routine blood tests, the diagnosis of secondary hypertension can be confirmed. 3. Chest X-ray examination: after the existence of secondary hypertension, when the patient does chest X-ray examination, it will be found that the lower edge of the ribs is eroded by the compression of intercostal arteries, etc. If the above manifestations are found, it is recommended to consult a doctor in time. If by the above manifestations, it is recommended to consult a doctor in time and standardize the treatment under the guidance of the doctor.