For mild hydronephrosis with kidney stone, it is recommended to take comprehensive treatment according to the specific location, size and degree of hydronephrosis of the stone, you can choose extracorporeal shock wave lithotripsy treatment, medication lithotripsy treatment, or direct surgical treatment. In principle, for kidney stones smaller than 6mm with mild hydronephrosis, drink more water, take oral medication to promote the discharge of stones as soon as possible, such as oral urolithiasis pills, lithotripsy granules and other medications, and dynamically observe the discharge of the stones. For stones larger than 6mm and smaller than 2cm, it is recommended to choose extracorporeal shock wave lithotripsy treatment, and dynamically observe the discharge of stones in the process of treatment, if the stones are not discharged for a long time or the amount of fluid gradually increases, it is recommended to carry out surgical treatment. For kidney stones larger than 2cm with mild hydronephrosis, hospitalization is recommended for surgical treatment, which can be performed by percutaneous nephrolithotomy with holmium laser lithotripsy or ureteral flexible lens with holmium laser lithotripsy to remove the stones and achieve the goal of restoring health.