Kidney stones are hard mineral deposits that develop inside the kidneys when substances in the urine—such as calcium, oxalate, or uric acid—become overly concentrated. These crystals stick together and form stones that can vary in size, from tiny grains to large, painful obstructions. Many people do not realize they have a kidney stone until the stone begins to move through the urinary tract, where it can cause severe discomfort.
Recognizing early kidney stone symptoms is essential for preventing complications. The most common symptom is intense flank pain, typically starting in the side or back and radiating toward the lower abdomen. Other symptoms include blood in the urine, nausea, vomiting, or painful urination. Understanding the underlying kidney stone causes and learning how to prevent kidney stones can significantly reduce your chances of experiencing this painful condition.
