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Causes

Kidney stones are usually formed following a build-up of certain chemicals in the body.

Certain medical conditions can lead to an unusually high level of these chemicals in your pee.

You're also more likely to develop kidney stones if you do not drink enough water and other fluids.

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:

Recurrent kidney stones 

People who keep getting kidney stones include those who:

Medicines

Certain medicines may increase your risk of developing recurrent kidney stones.

These include: