Blood in the urine
A typical sign is blood in the urine. People with kidney stones may rely on this reliable source. This condition is also known as hematuria. Blood can be red, pink, or brown in color. Although blood cells are often too minute to view without a microscope (a condition known as microscopic hematuria), your doctor can analyze your urine to check whether it includes blood.
Because of the presence of red blood cells, gross hematuria causes pink, red, or cola-colored urine. It just takes a small amount of blood to create crimson urine, and the bleeding is typically not unpleasant. However, passing blood clots in your urine might be uncomfortable. Certain drugs, such as the laxative Ex-lax, and foods, such as beets, rhubarb, and berries, might cause your urine to become red. Urine color changes induced by medicines, diet, or exercise may resolve within a few days. Bloody urine has a distinct appearance, but you might not be able to tell the difference. It is important to consult your doctor if you notice red-colored urine.