Urine crystals form when there are too many minerals in a person’s urine. Crystals in urine may cause no symptoms or may include lower back pain and nausea. When there is an excessive buildup of one ...

Red pee, or what appears to be blood in urine, has many causes. Here's how to tell if it's harmless or a sign of a more ...

You may have hematuria due to an infection, such as a urinary tract infection, or recent sexual activity. Long-term conditions, such as viral hepatitis, can also cause red blood cells in your pee. Red ...

Urine color changes from clear to orange with your hydration level but may also change due to food pigments or medications. Specific colors may indicate a condition that needs medical attention.