Kidney disease is no longer just for the elderly—here's why young adults are at risk

Your kidneys are working right now, filtering waste from your blood, balancing your body's fluids, steadying your blood pressure. They do this without asking for recognition, without sending you a single alert. And that is precisely the problem.

For decades, kidney disease belonged to the elderly. Doctors expected to see it in patients over sixty, in people whose bodies had simply worn down over time. But that assumption no longer holds. Across India and around the world, younger adults are developing chronic kidney disease in growing numbers, often discovering the damage only after their kidneys have already lost significant function. The disease earns its nickname—the silent disease—because the kidneys rarely complain in the early stages. By the time a person feels sick, by the time fatigue sets in or swelling appears, the damage is often already substantial.

The World Health Organization has documented a global rise in non-communicable diseases like diabetes and high blood pressure, the two leading causes of kidney damage. In India, the shift has been particularly sharp. Over the past two to three decades, kidney disease diagnoses have climbed across all age groups, driven partly by better screening and awareness campaigns like World Kidney Day, which has been observed annually since 2006. But the real driver is simpler and more troubling: how people live now is fundamentally different from how they lived before.

Young professionals in Indian cities spend their days hunched over computers, skipping meals, eating late at night, drinking sugary beverages, ordering takeout. They sleep poorly and move very little. This routine, repeated day after day, puts the body under constant metabolic stress. Obesity, once rare in younger Indians, now appears even in children. With obesity comes insulin resistance, with insulin resistance comes diabetes, and with diabetes comes kidney damage. A person can look perfectly healthy—fit enough to run a 5K, strong enough to lift weights—while their blood pressure climbs and their kidneys quietly fail. The visible and the invisible have split apart.

The burden is not evenly distributed. Rural areas, surprisingly, show higher rates of kidney disease than cities—about fifteen percent of the rural population versus ten and a half percent in urban areas. The gap reflects not healthier living but worse access: less awareness, fewer doctors, higher costs. Women face particular vulnerability. They suffer more urinary tract infections than men, and for reasons not fully understood, they develop kidney disease at higher rates. Beyond lifestyle, other everyday habits compound the risk. People take over-the-counter painkillers without thinking, use unregulated bodybuilding supplements, ignore repeated infections. Some use skin-lightening products linked to protein loss through the kidneys. Climate change and agricultural chemicals add another layer of invisible threat.

Dr. G K Prakash, a nephrologist at Manipal Hospital, frames it as a silent epidemic of the twenty-first century. It affects hundreds of millions of people globally, yet receives far less public attention than heart disease or cancer. One reason is that kidney damage develops so gradually that a person continues their normal life while function declines. Another is that many of the risk factors—a skipped breakfast, a painkiller for a headache, inadequate water intake—seem trivial in the moment.

Prevention is possible, though not guaranteed. Controlling blood sugar and blood pressure remains the most effective defense. So does maintaining a healthy weight, staying physically active, limiting salt, drinking enough water, and avoiding tobacco. But the critical intervention is earlier detection. A simple urine test, a blood creatinine measurement, and an estimated glomerular filtration rate can reveal kidney problems long before symptoms emerge. Young adults with diabetes, high blood pressure, obesity, a family history of kidney disease, or recurrent kidney stones should ask their doctors about regular screening rather than waiting for their bodies to send distress signals.

For a generation constantly racing, constantly optimizing, constantly pushing forward, kidney health may seem like a problem for later. But the choices made today—what to eat, whether to move, whether to get that routine checkup—shape what happens inside the body for decades to come. The kidneys work silently. They deserve at least a little attention in return.