Main function
By understanding the physiological functions and pathological changes of the urinary system, the functions of multiple organs and systems throughout the body can be indirectly reflected [2].
Diagnosis and therapeutic effect observation of the urinary system: such as inflammation, tuberculosis, calculi, and tumors.

2. Assist in the diagnosis of other systemic diseases: such as diabetes, pancreatitis, jaundice, heavy metal poisoning, Cushing’s disease, and pheochromocytoma.
3. Safety medication monitoring.
4. Diagnosis of obstetric and gynecological disorders: such as pregnancy, choriocarcinoma, and hydatidiform mole.