India Sees Sharp Rise In Kidney Stone Cases: Experts Cite Multiple Risk Factors

Kidney stone cases are rising steadily across India, with medical experts attributing the trend to a combination of environmental, lifestyle and dietary factors. While dehydration caused by rising temperatures has long been recognised as a key contributor, doctors now warn that contaminated drinking water and changing lifestyles are also increasing the risk of developing the painful condition.

Kidney stones are hard mineral deposits that form in one or both kidneys when minerals such as calcium, oxalate or uric acid become highly concentrated in urine. According to the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), an estimated 8-12% of India's population is affected by kidney stones, with cases particularly common in the northern and western parts of the country.

Around two million Indians are estimated to develop kidney stones every year, making the condition a significant public health concern. Dr. Pankaj Panwar said the growing number of cases is linked to multiple factors rather than a single cause. One of the biggest contributors is India's tropical climate, where prolonged exposure to heat often leads to dehydration. When the body loses fluids through sweating and water intake remains inadequate, urine becomes more concentrated, allowing minerals to crystallise and gradually form stones. Research published in the Scholars Academic Journal of Biosciences has also identified hot climate exposure as a major risk factor for kidney stone formation.

Another emerging concern is the quality of drinking water. Experts say widespread contamination of water sources in both urban and rural areas may be contributing to the increase in kidney stone cases. Many communities either lack access to safe drinking water or rely on supplies containing high levels of dissolved minerals and other contaminants. Although water quality varies across regions and contaminated water is only one of several contributing factors, doctors believe prolonged exposure to poor-quality water may increase the likelihood of stone formation in susceptible individuals.

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Dietary changes are also playing an important role. Increased consumption of processed foods, packaged snacks and meals high in salt has been associated with a greater risk of kidney stones. Excess sodium causes the kidneys to excrete more calcium into the urine, creating conditions that favour stone formation. Diets rich in animal protein, sugary beverages and foods containing high levels of oxalates may also raise the risk, particularly when combined with insufficient water intake. A sedentary lifestyle has emerged as another contributing factor. Reduced physical activity can affect metabolism and calcium balance in the body, increasing the likelihood of kidney stone development.

Rising rates of obesity, diabetes and metabolic disorders, all of which are linked to modern lifestyles, have also been associated with a higher incidence of kidney stones. Symptoms of kidney stones can include severe pain in the back or side, pain while urinating, blood in the urine, nausea, vomiting and frequent urination. However, smaller stones may pass through the urinary tract without causing symptoms. Doctors advise seeking medical attention if pain becomes severe, fever develops or there is difficulty passing urine, as untreated stones can lead to infections or kidney damage. Health experts recommend several preventive measures to reduce the risk of kidney stones.

Drinking adequate amounts of clean water throughout the day remains the most effective strategy, particularly during hot weather. Maintaining a balanced diet with moderate salt intake, consuming fresh fruits and vegetables, limiting processed foods and remaining physically active can also help lower the risk. Individuals with a history of kidney stones or recurrent symptoms should consult a healthcare professional for evaluation and personalised advice.

As temperatures continue to rise and lifestyle patterns evolve, doctors say greater awareness about hydration, nutrition and access to safe drinking water will be essential to reducing the growing burden of kidney stone disease in India. Early diagnosis and preventive care can significantly reduce complications and improve long-term kidney health.

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