Kidney Failure: What It Is and How to Prevent It

Kidney failure happens when the kidneys can no longer effectively filter waste, balance fluids, or regulate electrolytes in the body. When this occurs, toxins build up in the blood, leading to serious health problems. Kidney failure can develop suddenly (acute kidney failure) or gradually over years (chronic kidney disease, or CKD).

Why Kidneys Matter

Your kidneys:

Remove waste and excess water from the blood, Control blood pressure, Help make red blood cells, Keep bones healthy by balancing minerals,

When kidney function drops below about 15%, dialysis or a kidney transplant may be needed to survive.

Common Causes

The leading causes of kidney failure are:

Diabetes (high blood sugar damages kidney filters)

High blood pressure (damages blood vessels in the kidneys)

Chronic infections or inflammation of the kidneys

Long-term overuse of painkillers like NSAIDs

Severe dehydration, infections, or blocked urine flow (acute causes)

Warning Signs

Early kidney disease often has no symptoms. As it worsens, signs may include:

Swelling in feet, ankles, or face

Fatigue and weakness

Changes in urination

Nausea, itching, or shortness of breath

How to Prevent Kidney Failure

Prevention focuses on protecting kidney function early:

Control blood sugar and blood pressure if you have diabetes or hypertension, Stay hydrated, but avoid excessive fluid intake, Eat a balanced diet low in excess salt and ultra-processed foods, Avoid smoking and limit alcohol, Use pain medications cautiously, especially long-term, Get regular checkups, including blood and urine tests if you’re at risk,

From: Paul S. Dangha. MLT(amt),BSc microbiology