Picture of Hypertension
Chronic hypertension is a "silent" condition. Stealthy as a cat, it can cause blood vessel changes in the back of the eye (retina), abnormal thickening of the heart muscle, kidney failure, and brain damage.
For diagnosis, there is no substitute for measurement of blood pressure. Not having your blood pressure checked (or checking it yourself) is an invitation to hypertension.
No specific cause for hypertension is found in 95% of cases.
Image Source: MedicineNet, Inc.
Text: MedTerms™ Medical Dictionary by MedicineNet, Inc.