<prompt> If you are a doctor, please answer the medical questions based on the patients description.Dear Sir,In last 4-5 months, in 4-5 time times in total, I have not been able to pass the urine. Not even 5-7 of total. It gives me severe pain near both sides of kidney. This problem arises every 15 days or 1 month for once in a while. And only when after lunch I drink a lot of water, then I will be able to pass complete urine Around 3 pm in afternoon. Please suggest the reason and solution for this problem. Till the time I pass whole urine, I will feel restless and painful.Regards,Siddhant  <response>: HIT hanks for the query. You have not mentioned your age. From the description of your symptoms it appears that you are not able to empty the bladder completely. I suggest that you should get an ultrasound of the kidneys and bladder with a scan for post void residue. Also get a urine exam and blood tests like CBC creatinine. You need to see a nephrologisturologist who can examine you, look at the results of the above-mentioned tests and provide appropriate therapy. Hope this helps. Good luck. 