Difficulty: Moderately Easy
Step1
Many times you will only get one single episode of severe flank pain that usually goes to the groin and lasts a few minutes to an hour.
Step2
People having multiple stones in kidneys may remain without symptoms for years until one day a small piece of the stone breaks and falls into the bladder and gets caught up in one of the twists of the muscular tubes (ureters) that drain urine from kidneys to the bladder.
Step3
This may cause severe spasm of the ureter giving rise to considerable pain. Many times this small stone passes out through urine after giving you painful episode lasting about 20 minutes or so. Then you become completely normal.
Step4
You may notice some blood in urine during or after this painful episode. It is usually due to a minor scratch to the ureter while the stone is descending down to the bladder
Step5
Your urine examination may show red blood cells and crystals such as oxalate.