World Kidney Day is observed every second Thursday of March — a global awareness campaign highlighting the importance of kidney health and the need for early detection and prevention of kidney disease. This year's theme, "Expecting the Unexpected," reflects the reality that kidney disease often strikes without warning — and that proactive monitoring is the only way to catch it before irreversible damage occurs.
The Silent Threat of Kidney Disease
Chronic kidney disease (CKD) is often called a "silent disease" because it typically causes no symptoms until 60–70% of kidney function has been lost. By the time most people are diagnosed, significant and often irreversible damage has already occurred. In India, an estimated 17% of the population has some degree of CKD — yet the vast majority are unaware of their condition.
The Unexpected Faces of Kidney Disease
Kidney disease doesn't only affect the elderly or those with obvious risk factors. It can strike unexpectedly in:
- Young adults with inherited conditions like polycystic kidney disease (PKD) or Alport syndrome
- Athletes who use NSAIDs chronically for pain management
- People who appear healthy but have undiagnosed hypertension or diabetes
- Those using traditional herbal medicines that contain nephrotoxic compounds
- Agricultural workers in certain regions with endemic nephropathy of uncertain cause
Know Your Numbers
Two simple tests can detect kidney disease early:
- eGFR (estimated Glomerular Filtration Rate): Calculated from a blood creatinine test. Measures how well your kidneys are filtering waste. Normal is >60 mL/min/1.73m².
- Urine albumin-to-creatinine ratio (UACR): Detects albumin (protein) in the urine — an early sign of kidney damage. Normal is <30 mg/g.
These tests are inexpensive, widely available, and can detect kidney disease years before symptoms appear. Annual testing is recommended for people with diabetes, hypertension, obesity, family history of kidney disease, or age over 60.
The Genetic Basis of Kidney Disease
Genetics plays a significant role in kidney disease susceptibility. Inherited conditions directly causing kidney disease include Autosomal Dominant Polycystic Kidney Disease (ADPKD, caused by PKD1/PKD2 mutations), Alport syndrome (COL4A3/COL4A4/COL4A5 mutations), and Fabry disease (GLA mutations). Genetic variants also influence susceptibility to kidney damage from diabetes, hypertension, and other causes. APOL1 variants, common in people of African ancestry, significantly increase kidney disease risk.
Prevention: What You Can Do Today
- Get your eGFR and UACR checked annually if you have risk factors
- Control blood pressure (target <130/80 mmHg) and blood sugar (HbA1c <7%)
- Stay well hydrated — aim for 2–3 liters of water daily
- Avoid chronic NSAID use — use paracetamol for pain when possible
- Don't smoke — smoking accelerates kidney disease progression
- Maintain a healthy weight — obesity is an independent risk factor for CKD
FAQs
Can kidney disease be inherited?
Yes. Several kidney diseases are directly caused by genetic mutations and run in families. If you have a family history of kidney disease, genetic testing and counselling can clarify your risk and guide monitoring.
What are the early warning signs of kidney disease?
Early CKD typically has no symptoms. Later signs include fatigue, swelling in the legs and ankles, changes in urination frequency or color, foamy urine (protein in urine), high blood pressure, and loss of appetite. Don't wait for symptoms — get tested.
Know Your Genetic Kidney and Metabolic Health Risk
Genomepatri by MapmyGenome includes genetic risk assessment for kidney disease, diabetes, and hypertension — backed by NABL-certified labs and expert genetic counsellors who help you build a personalised prevention and monitoring plan.
