Kidney stones are hard mineral deposits that form inside the kidneys when substances like calcium, oxalate, and uric acid crystallize in concentrated urine. Under an electron microscope, many stones reveal sharp geometric crystal structures with jagged edges capable of scraping and irritating delicate urinary tissues. Their rough microscopic surfaces help explain the intense pain people experience when stones move through the urinary tract. Photo credit: National Institute of Diabetes and Digestive and Kidney Diseases. DM FOR REMOVAL :) MLA Source: National Institute of Diabetes and Digestive and Kidney Diseases. “Kidney Stones.” NIDDK, U.S. Department of Health and Human Services, niddk.nih.gov/health-information/urologic-diseases/kidney-stones Want more interesting content like this ? Follow gravitonomy :) #science #kidneystones #kidney #body #biology