27th May 2025

Aetiology

Excessive aldosterone production occurs due to adrenal adenoma (also known as Conn’s syndrome) in 80% of cases, idiopathic bilateral adrenal hyperplasia in 15% of cases, familial hyperaldosteronism type I and II, or adrenal carcinoma. Adrenal adenomas are more common in females, whilst bilateral adrenal hyperplasia more commonly occurs in males past the age of 40.