Types of kidney stones
Kidney stones come in a variety of sizes, shapes and colours. Some are like grains of sand, while in rare cases others can grow to the size of a golf ball.
The main types of kidney stones are:
- calcium stones, the most common type of stone
- struvite stones, usually caused by an infection, like a urine infection
- uric acid stones, usually caused by a large amount of acid in your urine
Recurrent kidney stones
People who keep getting kidney stones include those who:
- eat a high-protein, low-fibre diet
- are inactive or bed-bound
- have a family history of kidney stones
- have had several kidney or urinary infections
- have had a kidney stone before, particularly if it was before they were 25 years old
Certain medicines may increase your risk of developing recurrent kidney stones.