Why do I need a crystals in urine test?A urinalysis is often part of a routine checkup. Your health care provider may include a crystals in urine test in your urinalysis if you have symptoms of a kidney stone. These include:Sharp pains in your abdomen, side, or groinBack painBlood in your urineFrequent urge to urinatePain when urinatingCloudy or bad-smelling urineNausea and vomiting
