Like primary hypertension, secondary hypertension usually has no specific symptoms, even if blood pressure has reached dangerously high levels. For people diagnosed with high blood pressure, having any of these signs may mean the condition is secondary hypertension:  High blood pressure that doesn't respond to blood pressure medications (resistant hypertension) Very high blood pressure — systolic blood pressure over 180 millimeters of mercury (mm Hg) or diastolic blood pressure over 120 mm Hg High blood pressure that no longer responds to medication that previously controlled the blood pressure Sudden-onset high blood pressure before age 30 or after age 55 No family history of high blood pressure No obesity 
like primary hypertension  secondary hypertension specific symptoms  blood pressure reached dangerously high levels  people diagnosed high blood pressure  signs may mean condition secondary hypertension:  high blood pressure doesn't respond blood pressure medications (resistant hypertension) high blood pressure — systolic blood pressure 180 millimeters mercury (mm hg) diastolic blood pressure 120 mm hg high blood pressure longer responds medication previously controlled blood pressure sudden-onset high blood pressure age 30 age 55 family history high blood pressure obesity 
secondary hypertension