There is no optimal treatment for ureteral stone 0.3mm, you need to choose the appropriate treatment such as medication, extracorporeal lithotripsy and ureteroscopy according to your condition. Upper urinary tract stones below 6mm can be discharged through the lumen of the ureter. Ureteral stones of 0.3mm can be medically expelled if there is no urinary tract obstruction below the stone, such as uric acid stones can be treated with drugs such as sodium citrate, sodium bicarbonate, and cystine stones can be treated with drugs such as acetylcysteine. Ureteral stones for which medication is ineffective can be selected for extracorporeal shock wave lithotripsy or ureteroscopic lithotripsy. Ureteral stone 0.3mm size is small, it is recommended that the patient consults the doctor, according to the condition and personal wishes to choose the appropriate treatment, and follow the doctor’s instructions to use medication.