Primary hypertension, also known as essential hypertension, is the result of a consistent elevation of the force of blood being pumped throughout the body, whereas secondary hypertension is the result of high blood pressure due to another medical condition.[6] Diseases that can cause secondary hypertension include diabetic nephropathy, glomerular disease, polycystic kidney disease, cushing syndrome, pheochromocytoma, aldosteronism, sleep apnea, obesity, and pregnancy.[7] Most often, there are no definite symptoms to this disease.