Q: What kind of health problem can occur in the kidney and potentially cause problems with urination?


Read this paragraph and choose the correct option from the provided answers:

Kidney stones are mineral crystals that form in urine inside the kidney. They may be extremely painful. If they block a ureter, they must be removed so urine can leave the kidney and be excreted.

 Choices:

- infection

- diabetes

- gallstones

- kidney stones


A:
kidney stones