Patient: right ureteral stone in November 2005; left kidney stone; prostate stone. In March 2008, left kidney had calcified foci in the pelvis; right ureteral bladder inlet stones. Renal colic. May 2009 left kidney now has stone 6*8mm, left ureter near bladder suspected to be 6*4mm stone. No pain symptoms, no abnormal blood and urine test results. He had received 2 extracorporeal lithotripsy in November 2005 and March 2008 and both of them were examined by ultrasound 3 weeks after lithotripsy and the stones disappeared. 1.? 6*8mm stones in kidney 2. small prostate stones 3. ureteral stones What treatment should be taken for each? Expert: 1. small prostate stones: clinically, no active treatment is needed. 2. 6*8mm stone in the left kidney: can be treated by extracorporeal lithotripsy. 3.Ureteral stone 6*4mm: can be treated with extracorporeal lithotripsy first, if the stone is still not excluded after 4 weeks of observation, it can be treated with Holmium laser lithotripsy under ureteroscopy. Patient: Hello! I had an ultrasound done in the hospital this week. The results are as follows: 1. An anechoic area of 10mm*9mm is seen in the lower pole of the left kidney, with strong echogenicity and a comet tail sign in the posterior. 2, the right infrarenal calyx is visible as a punctate enhancement without acoustic shadow. 4mm 3, the prostate gland is full morphologically, with uneven internal echogenicity. Diagnosis: left renal calculus; right renal calculus; prostatic hyperplasia; both ureters are not dilated. What is the treatment for left kidney calculus? 2. How does prostatic hyperplasia develop? How should I treat it? Expert: Calculus is neither a simple cyst nor a simple stone, but a cyst mixed with a stone. The diameter is generally