A silent kidney crisis is spreading far faster than experts expected
- Date:
- May 29, 2026
- Source:
- NYU Langone Health / NYU Grossman School of Medicine
- Summary:
- A sweeping global study found that chronic kidney disease now affects nearly 800 million people and has become one of the world's leading causes of death. Often silent in its early stages, the condition is also a major contributor to heart disease and may be even more common than current estimates suggest.
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Chronic kidney disease has become one of the world's most widespread and deadly health problems, with record numbers of people now estimated to have reduced kidney function.
A 2025 global analysis found that the number of people living with the condition rose from 378 million in 1990 to 788 million in 2023. As the global population has grown and aged, chronic kidney disease has moved into the top 10 causes of death worldwide for the first time.
The work was led by researchers at NYU Langone Health, the University of Glasgow, and the Institute for Health Metrics and Evaluation (IHME) at the University of Washington. It examined the growing toll of a disease that slowly weakens the kidneys' ability to remove waste and extra fluid from the blood.
In mild cases, people may feel no symptoms at all. In advanced cases, patients may need dialysis, kidney replacement therapy, or a kidney transplant.
A Disease Many People Never See Coming
The analysis estimated that about 14% of adults worldwide have chronic kidney disease. It also found that roughly 1.5 million people died from the condition in 2023. After adjusting for differences in age patterns across countries, deaths were more than 6% higher than in 1993.
"Our work shows that chronic kidney disease is common, deadly, and getting worse as a major public health issue," said study co-senior author Josef Coresh, MD, PhD, director of NYU Langone's Optimal Aging Institute. "These findings support efforts to recognize the condition alongside cancer, heart disease, and mental health concerns as a major priority for policymakers around the world."
In May 2025, the World Health Organization formally placed chronic kidney disease on its agenda for reducing early deaths from noncommunicable diseases by one third before 2030. Coresh said that tackling the problem requires a clear and current picture of how the disease is affecting populations around the world. He is also the Terry and Mel Karmazin Professor of Population Health at the NYU Grossman School of Medicine.
The report was published in The Lancet and was also presented at the American Society of Nephrology's annual Kidney Week conference. According to the authors, it was the most comprehensive global estimate of chronic kidney disease in nearly a decade.
A Global Snapshot of Kidney Damage
The investigation was part of the Global Burden of Disease (GBD) 2023 study, a large international effort to track health loss across countries and over time. Its results are often used to guide public health policy and shape global health research priorities.
For the analysis, researchers reviewed 2,230 published research papers and national health datasets from 133 countries. They looked at patterns in diagnoses and deaths, and also measured how much disability is linked to chronic kidney disease.
The findings showed that kidney damage does not only threaten the kidneys. Impaired kidney function was also a major risk factor for heart disease, contributing to about 12% of global cardiovascular deaths.
In 2023, chronic kidney disease was also the 12th leading cause of reduced quality of life from disability. The biggest risk factors were high blood sugar, high blood pressure, and high body mass index (a measure of obesity).
Early Treatment Could Change the Trajectory
Most people with chronic kidney disease in the study were still in the early stages. That detail matters because earlier action can often slow the disease and help patients avoid more intensive and costly treatments later.
Coresh said medications and lifestyle changes can help prevent progression to dialysis or kidney transplantation when the condition is caught early enough.
Access to treatment, however, is uneven. In sub-Saharan Africa, Southeast Asia, Latin America, and other low-income regions, relatively few people receive dialysis or kidney transplants. The likely reason is that these treatments are often less available and harder to afford in those areas.
"Chronic kidney disease is underdiagnosed and undertreated," said study co-lead author Morgan Grams, MD, PhD. "Our report underscores the need for more urine testing to catch it early and the need to ensure that patients can afford and access therapy once they are diagnosed."
Grams, the Susan and Morris Mark Professor of Medicine at the NYU Grossman School of Medicine, said several medications introduced over the past five years can slow kidney disease and lower the risk of heart attack, stroke, and heart failure. Still, she noted that it will take time for those advances to improve outcomes on a global scale.
She also cautioned that chronic kidney disease may be even more common than the estimates suggest because many people are never tested.
Why the Warning Is Still Growing
Since the 2025 analysis was published, kidney disease has continued to gain attention as a global health priority. In 2026, kidney experts highlighted projections suggesting that chronic kidney disease deaths could keep rising in the decades ahead, even as deaths from stroke and ischemic heart disease are expected to fall sharply.
Clinical guidance is also evolving. Kidney Disease: Improving Global Outcomes, an organization that develops widely used kidney care guidelines, has been updating its 2024 chronic kidney disease guidance to address emerging evidence on kidney protective treatments. These include SGLT2 inhibitors, GLP-1-based therapies, and nonsteroidal mineralocorticoid receptor antagonists in people with chronic kidney disease without diabetes.
The growing focus reflects a shift in how experts view the disease. Chronic kidney disease is no longer seen only as a late-stage condition that leads to dialysis or transplant. It is increasingly understood as a quiet, common, and dangerous disorder that can be detected earlier, treated sooner, and linked closely to some of the world's biggest killers.
Funding and Disclosures
Funding for the study was provided by National Institutes of Health grant R01DK100446, the Gates Foundation, and the National Kidney Foundation.
Coresh is a scientific adviser and equity holder in Healthy.io, a health technology company that offers remote clinical testing and related services. He is also a consultant for SomaLogic. These relationships are disclosed and managed by NYU Langone Health policies and procedures.
Along with Coresh and Grams, Patrick Mark, PhD, at the University of Glasgow, and Lauryn Stafford, MS, at the Institute for Health Metrics and Evaluation (IHME) at the University of Washington in Seattle, were study co-lead authors.
Other study co-senior authors included Jennifer Lees, PhD, at the University of Glasgow, and Theo Vos, PhD, and Liane Ong, PhD, at the Institute for Health Metrics and Evaluation (IHME) at the University of Washington in Seattle.
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Materials provided by NYU Langone Health / NYU Grossman School of Medicine. Note: Content may be edited for style and length.
Journal Reference:
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