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Hormonal Causes of hypertension
Hormonal Causes of Hypertension - when high blood pressure may have a hormonal accomplice
Clinical review September 2026
Most high blood pressure is not an endocrine diagnosis
High blood pressure is common and usually has more than one contributor. Endocrine hypertension means there may be a hormone-related, and sometimes treatable, driver. The possibility is considered when blood pressure is severe, begins unusually early, is difficult to control, comes with low potassium or an adrenal finding, or has a suggestive family or symptom pattern.
The main endocrine possibilities include primary aldosteronism, cortisol excess, phaeochromocytoma and—more rarely—other thyroid, parathyroid or adrenal disorders. The correct question is not “Which rare illness do I have?” but “Is there enough of a clue to test sensibly?”
Tests are chosen, not collected
A clinician may review home or ambulatory blood pressure readings, potassium, kidney function, medicines and sleep history before selecting hormone tests. The aldosterone–renin ratio is a key screen for primary aldosteronism. Metanephrines are used when catecholamine excess is plausible; cortisol testing is selected when features raise that question. Broad unprepared testing can create misleading positives, which is not a prize for thoroughness.
Treating the cause and the pressure
Finding a hormonal cause does not mean existing blood-pressure medicines suddenly become irrelevant. Treatment may include an aldosterone-blocking medicine, surgery for a suitable adrenal source, treatment of cortisol excess or a specialist phaeochromocytoma pathway. Home readings, side effects, potassium and kidney function help guide the plan. Seek urgent help for blood pressure with chest pain, breathlessness, new weakness, confusion, speech difficulty or severe sudden headache.
Important safety note
This page is general education, not personal medical advice. Seek urgent help for collapse, confusion, severe vomiting or diarrhoea with adrenal insufficiency, severe chest pain, severe breathlessness, new weakness or neurological symptoms, or acute severe illness. Follow individual instructions from your endocrine team for medicines and investigations.
Further reading
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