Hematuria is the presence of blood in the urine, which can be visible to the naked eye (gross hematuria) or detected through a microscope (microscopic hematuria). It can result from various causes, including infections, kidney stones, or more serious conditions like tumors or kidney disease. While it may not always indicate a serious problem, it is important to seek medical evaluation to identify the underlying cause. Treatment depends on addressing the specific cause of hematuria. While the sight of blood in the urine can be alarming, hematuria can occur due to a wide variety of underlying causes, ranging from benign to serious conditions.