Kidney stones and ureterorenoscopy

Kidney stones are a hard build-up of minerals in the kidneys.

There are five main types of kidney stones:

  • Calcium oxalate stones: These usually form when there is too much oxalate or calcium in the urine.
  • Calcium phosphate stones: These occur depending on the urinary pH level.
  • Struvite stones: These often occur following recurrent UTIs.
  • Uric acid stones: These are formed when there is too much uric acid in the urine.
  • Cystine stones: These are the rarest type and are associated with a condition called cystinuria.

Kidney stones can travel down the ureter, into the bladder and are then passed out of the body. When the stones become too big, however, they can become stuck and cause severe pain.

A ureterorenoscopy is a procedure that is performed to break up and remove kidney stones. A ureterorenoscopy is done under a general anaesthetic. A small, pencil-thin telescope is used to find the kidney stones in the ureter or the kidneys. Once the stones have been located, a laser beam is used to break them into smaller pieces. These small pieces will then either be removed or left to pass naturally.

If you would like to speak to our team about having a ureterorenoscopy, please call 07921 874889 or email

This leaflet from the BAUS (British Association of Urological Surgeons) contains more information about how to reduce your risk of getting further kidney stones.

back to top