Hello, mother physical examination found hydronephrosis, would like to consult

Hydronephrosis is a disease caused by increased intrarenal pressure due to obstruction of urine excretion and dilatation of renal pelvis and calyx. The causes of obstruction of urine include urinary calculi, stricture of ureteropelvic junction, urinary tumor, etc. The patient can be diagnosed by urinary system color Doppler ultrasound examination to clarify the cause and symptomatic treatment.