Hello Sir, Recently I had a severe pain in lower abdomen, and I went to urologist after that he suggested to do blood, urine and ct scan. After he seen the reports he told me that I have stone in kidney and it felt down bladder. Then he suggest medicine to cure. But the problem is when I done ct scan it shows I have cyst in prostate 18 mm large. Is it dangerous sir or how can I reduce that please tell me.