May 06: As temperatures continue to soar during the ongoing heatwave, doctors are observing a noticeable rise in kidney stone cases. Health experts attribute this seasonal spike to dehydration and fluid loss, which significantly increase the risk of stone formation in the body.
During extreme heat conditions, the body loses large amounts of fluid through sweating. If this loss is not compensated with adequate water intake, it leads to reduced urine output and higher concentration of minerals such as calcium, oxalate, and uric acid. These minerals can crystallize and gradually form kidney stones, sometimes within just a few days of sustained exposure to high temperatures.
“Dehydration is one of the biggest triggers for kidney stones during hot weather. When the body lacks sufficient fluids, urine becomes concentrated, creating the perfect environment for crystals to form. We typically see a sharp increase in cases during peak summer months,” says *Dr Ritesh Mongha, Clinical Director amd Head of Urology, Uro-Oncology and Renal Transplant, Marengo Asia Hospitals*
The risk is even higher for individuals who spend long hours outdoors, such as field workers, delivery personnel, and those involved in construction or manual labour. In addition, dietary habits also play a role. High salt intake and excessive consumption of sugary or caffeinated drinks can further aggravate dehydration and increase the likelihood of stone formation.
Medical professionals highlight that kidney stones are not only painful but can also lead to complications if not addressed early. Symptoms often include severe abdominal or back pain, nausea, and difficulty in urination, requiring timely medical attention.
“Prevention is relatively simple but often overlooked. Staying well-hydrated is key. People should aim to drink at least 2.5 to 3 litres of fluids daily, and even more if they are exposed to heat for long durations. Including natural and easily available options like buttermilk, coconut water, lemon water, and fresh fruit juices can help maintain hydration levels effectively,” explains *Dr. Lokendra Kumar Yadav, Consultant, Urology, Kidney Transplant*
Doctors also recommend simple lifestyle adjustments to reduce risk. Limiting outdoor activity during peak afternoon hours, wearing light clothing, and consuming water-rich foods such as cucumbers, watermelon, and oranges can help the body stay cool and hydrated. Reducing salt intake and avoiding processed foods are equally important preventive measures.
Health experts further advise monitoring urine colour as an easy indicator of hydration. Pale or light-coloured urine generally indicates adequate fluid intake, while darker shades may signal dehydration.
With heatwave conditions expected to persist, doctors urge people to remain cautious and proactive about their hydration and dietary habits. Small, consistent steps can go a long way in preventing kidney stones and maintaining overall health during extreme summer conditions.
