This may occur in a clinic or doctor's office. If possible, the first urine in the morning is collected. A healthcare provider prepares the sample and sends it to a lab. Abnormal findings indicate certain problems. For example, protein in the urine suggests kidney disease.
Sugar usually indicates diabetes.
Certain substances indicate liver disease. A variety of problems cause bleeding in the urinary tract. White blood cells indicate an infection in the urinary tract. Bacteria or yeast also indicate infection. Some abnormal findings are not caused by only one disease.