High Blood Pressure and Kidney Disease
The two-way relationship between high blood pressure and kidney damage, and how controlling blood pressure protects the kidneys.
Last updated: 2026-09-24
High blood pressure is both a cause and a consequence of kidney disease. Sustained high pressure damages the kidney’s small vessels, while damaged kidneys struggle to regulate salt and fluid, raising pressure further.
Target blood pressure
For most people with kidney disease, the target is below 130/80 mmHg. The clinician sets an individual target based on age and comorbidities.
What helps
- Blood-pressure medicines, often ACE inhibitors or ARBs, taken as prescribed
- Reduced salt intake
- Regular activity and a healthy weight
- Home blood-pressure monitoring
Frequently asked questions
Which medicines protect the kidneys?
ACE inhibitors and ARBs reduce pressure inside the kidney filters and slow protein leak. The choice is individualised.
Can lowering blood pressure improve kidney function?
It can slow further loss and reduce protein in the urine, though it cannot repair scarred tissue.