Hematuria is the medical term for having blood in your urine. Microscopic hematuria is when the blood is not visible to the naked eye. If there’s enough that you can see it, it’s called gross hematuria. Your urine may look pink, brown or dark red. It may also have blood clots in it.
Most of the time, hematuria isn’t painful – though it can be if blood clots pass through the urethra.