Is hydronephrosis severe?

If hydronephrosis is severe, the patient should go to urology department for treatment, check urinary color ultrasound or urinary enhanced ct, that is, ctu examination. After ctu examination, it can accurately judge and three-dimensional reconstruction, more intuitive display of the severity of hydronephrosis, the key to judge whether hydronephrosis causes serious damage to renal function, can be penetrant examination, judge the side kidney function. If the gfr is too low, less than 20, it means that renal function has been seriously damaged, indicating that hydronephrosis is very severe. If it is caused by ureteropelvic junction stenosis, reconstruction surgery can be performed. If ureteral stones cause hydronephrosis, ureteroscopic holmium laser lithotripsy can be performed. The operation can be performed at the earliest stage to achieve the best effect of protecting renal function. Otherwise, the later the time, the more severe the renal function damage.