If the glands release too much parathyroid hormone, the amount of calcium in the blood rises - which triggers a rise in blood pressure. The parathyroid glands control levels of calcium and phosphorus in the body. When the thyroid gland doesn't produce enough thyroid hormone (hypothyroidism) or produces too much thyroid hormone (hyperthyroidism), high blood pressure can result. Having this tumor can lead to long-term high blood pressure or short-term spikes in blood pressure. This rare tumor, usually found in an adrenal gland, produces too much of the hormones adrenaline and noradrenaline. This makes the kidneys retain salt and water and lose too much potassium, which raises blood pressure.

The adrenal glands produce too much of the hormone aldosterone. In this condition, corticosteroid medications may cause secondary hypertension, or hypertension may be caused by a pituitary tumor or other factors that cause the adrenal glands to produce too much of the hormone cortisol.

Medical conditions affecting hormone levels also may cause secondary hypertension. Renovascular hypertension is often caused by the same type of fatty plaques that can damage the coronary arteries (atherosclerosis) or a separate condition in which the muscle and fibrous tissues of the renal artery wall thicken and harden into rings (fibromuscular dysplasia). This type of high blood pressure is caused by narrowing (stenosis) of one or both arteries leading to the kidneys. In glomerular disease, these filters become swollen. Kidneys remove waste and sodium using tiny filters called glomeruli. In this inherited condition, cysts in the kidneys interfere with kidney function and can raise blood pressure. Diabetes can damage the kidneys' filtering system, which can lead to high blood pressure.

Diabetes complications (diabetic nephropathy).

Several kidney diseases may cause secondary hypertension, including: Many health conditions can cause secondary hypertension.

Adrenal gland function ppt