Humans have two kidneys and shaped like a bean that are around 4 to 5 inches in length. They are located towards the back of the abdomen on either side of the spine.They remove waste products from the blood. The clean blood is then transferred back into the body and the waste products are passed out of the body in your urine when you go to the toilet.

Kidney stones can develop in one or both kidneys.

When Kidney stones cause severe pain it’s known as renal colic.

Symptoms of kidney stones

Pain in the back, belly, or side
Frequently urinating with urgency
Urine colour is cloudy
Smelly urine
Nausea and vomiting feeling
Burning or pain during urination
Blood traces in urine

What causes kidney stones?

Kidney stones form when your urine contains more crystal-forming substances — such as calcium, oxalate and uric acid . Sometimes, your urine may lack substances that prevent crystals from sticking together, creating an ideal environment for kidney stones to form.