Strongly positive QC bands are mainly positive results of current tests, including white blood cell characterization, urine ketones, and urine protein. A strong positive QC band is usually indicated by three plus signs, suggesting a strong positive. It is an abnormal diagnostic result, which mostly suggests that the organ is currently damaged or infected, but it should be analyzed according to the item being tested. A qualitatively high level of white blood cells indicates inflammation, which can be caused by inflammation of the reproductive system, inflammation of the urinary system and other diseases. A strong positive urine ketone body is indicative of ketosis. A strong positive urine protein test suggests that kidney function is impaired and is usually associated with kidney disease. If the strong positive QC band is detected, then other tests should be conducted for diagnosis and analysis, and relevant treatment should be given to determine the treatment plan under the guidance of the physician to avoid blindly using medication on their own.